Warnings from officials, demonstrating for a third day. Two people have reportedly been shot dead. At the same time, pro government rallies have been taking place in the capital tehran, with thousands of people showing their support. The Anti Government protests started in mashhad and spread to several parts of the country. They have focused on corruption and falling living standards, but they are becoming increasingly political. Wyre davies reports. Three days in and irans Anti Government protests have turned violent. In the Northern City of mashhad, demonstrators demanding an end to hardline clerical rule set Police Motorbikes alight and taunted the Security Services. From dorud in the west, video showed crowds scattering after two protesters were reportedly shot and killed. What began in provincial cities has now spread to the capital tehran and the Main University campus. These are worrying signs for the iranian government and the ultraconservative shia clerics, whove ruled over the country since the 1979 revolution. The government response organising large pro regime counterdemonstrations in support of the Supreme LeaderAyatollah Ali Khamenei and warning people not to take part in what it called illegal protests. Shouting for the clerics to give him a job, this protester typifies the economic anger that many iranians feel. The last time that people protested like this was almost a decade ago, and some fear similar violent consequences now. This is a regime that knows how to manage its people and has a monopoly on the use of violence. They effectively demonstrated that in 2009, and i think that most iranians at least the ones that i have spoken to, in the age of 25 40 have not yetjoined these protests. Theres been Little International reaction but, responding on twitter, donald trump said the iranian government should respect peoples rights to express themselves and warned the world is watching. But dissent in iran is only tolerated to a point. Uniformed and plain Clothes Police have made dozens of arrests across the country a sign the authorities may already be turning the screw. Wyre davies, bbc news. Im joined now by professor Mohsen Milani of the university of south florida an expert on iranian politics. Thank you forjoining us on a bbc news. We are at day three, what seems striking is that there is no coherence to the slogans being shouted or any identifiable group. How do you see it, professor . The movement started as an inter elite protest. It was one faction trying to undermine president rohani and undermine opening up his efforts to open up to the west. Gradually the movement spread to other cities and became more political and it seems to me, right now, nobody is in control of the protest movement. I think this movement is a reflection of the widely spread economic discontent about the Economic Conditions and unlike what Hassan Rouhani has promise, the Iranian Nuclear deal has not given improved conditions for the people. The movement does not seem to have a leader, does not seem to have a very specific agenda in mind. But still it is very important to remember that so far the Islamic Revolutionary guards have not intervened in the political scene. It suggests that perhaps the Islamic Republic does not feel that threatened by the protest movement. If this Movement Continues that i believe in the next few days it can pose a threat to the survival of the islamic public, the biggest since 2009. You mention the revolution regard, do you think the fact that a lot of the anger is being directed at president rouhani draws some succoui at president rouhani draws some succour for them at president rouhani draws some succourfor them in some at president rouhani draws some succour for them in some way . As i said, originally the movement started in the city of mashhad. This is the city where president rouhanis main rival has substantial political and financial influence and power. In that time, a lot of people in a sort of managed protest movement by the government. And some even suggested that perhaps the revolutionary guards were behind it. It seems to be whatever the intention was of the movement, now they have incurred a new phase and nobody knows where this Movement Goes precisely because there is no clear central leadership. Unlike the iranian revolution in 19 seven in a, which had a leader in khamenei. There was a leader and a specific goal in mind. The protest movement now does not seem to have any of those. This, ithink, is the greatest challenge those who are opposing the Islamic Republic are facing. But do not underestimate the repressive capability of the revolutionary guards and the resiliency of the Islamic Republic. This regime is well institutionalised in orion and can deal with protest movements such as the one we have with this in the past few days iran. The one we have with this in the past few days iran. I think we will find out in the next two days. Professor Mohsen Milani, thank you very much for your time and analysis. Thank you very much. Lets take a look at some of the other stories making the news. The black lives matter activist erica garner has died aged twenty seven. She suffered a heart attack last week. Ms garner came to prominence three years ago after her father eric garner died after being choked by a Police Officer as he was being arrested for a minor offence. Police in ukraine have freed ii people whod been held hostage in a post office in the city of kharkiv. A standoff had been going on since the early afternoon when a man entered the building wearing an explosive belt and threatened to detonate it. The suspect has been arrested. Russias Security Service says its detained a suspect behind last wednesdays supermarket blast in st petersburg. The fsb gave no details about the arrest. 18 people were injured when the device went off in a storage locker on the first floor of the store. Hospitals across the United States are dealing with a severe shortage of a critical medical supply the bags used to administer fluids to patients. One of the biggest suppliers of the bags is based on puerto rico, which was hit by hurricane maria. The bags, normally filled with saline and other fluids, are used to dilute drugs and help rehydrate patients. Scott gottlieb, commissioner of the us food and Drug Administration has issued a statement about the situation. He said the fda is working closely with industry and local and federal officials to address shortage of iv saline as a result of hurricane maria. This remains a key area of focus. We expect shortage of iv fluids will improve in early 2018 based on information were getting from manufacturers. Earlier i spoke to ross thompson. Hes executive director of pharmacy at Tufts Medical Centre in boston. He said iv fluids are essential for the delivery of medicines. We have been forced to think of things a bit differently than our traditional Delivery Systems where we would put a medication into one of these bags to be infused over 30 minutes or whatnot. We are now entertaining options of drawing the active ingredients up into a syringe that can be administered via iv push over the course of three or five minutes. And am i right in thinking that would take nursing staff . It does require additional time for the nurse to remain at the patients bedside to push the product in over that time span. So what information are you getting about when the supply of these bags will pick up . We do receive the information just as you had referenced, coming from baxter. We know the Recovery Efforts in puerto rico are going to be important to fully recover from the disruption we have had in supply. We are also being told we will receive allocations of supply of a percentage of what we would normally receive. We are just finding its a bit unpredictable as to how much of that allocation we receive week by week. You just referenced baxter. For our viewers, that is the main company on puerto rico that makes these bags. They say restoring a reliable product supply remains their priority. Do you feel you have been supported by the government, the fda, in this . We know the fda has taken action to allow importation of iv fluids that are manufactured in different countries. Its hard for us to really know how much of that importation is truly reaching providers in the United States but we know the fda is actively taking applets. Efforts. Does it worry you there is such a narrow supply, that an event like this, a hurricane, can completely blow out the supply of these bags to the United States . It does make you wonder how dependent you are on a handful of manufacturing plants around the world. We face the same type of disruption with a lot of other medications that tend to be in short supply. Right now, the fda has over 80 medications listed on their shortage lists that is published on the fdas website so just like the iv fluids, other essential medications we are managing around on a day to day basis. Ross thomson speaking to me earlier. Staying in the United States, because its not every day you can take photos of a frozen water fountain like this one in new york. Across vast swathes of the us, forecasters are predicting that arctic temperatures are set to stay over the new years celebrations. To show you just how cold it is, these are thresher sharks which have washed up frozen along the coast of cape cod, in the state of massachusetts. Thermometers could reach the lowest temperatures in nearly a century over the next few days and may stay there into the first week of 2018. Earlier i spoke to michael wehner, a Senior Scientist at the Lawrence BerkeleyNational Laboratory in california. Well, this cold snap is caused by a cold arctic air mass over the eastern United States by an unusual but not unprecedented jetstream pattern. Im a Climate Change scientist specialising in attributing human influence on these weather events and the question that is interesting to me, does Global Warming change the general circulation of the atmosphere to make this kind of event more likely . You mentioned Global Warming. We are always being warned not to conflate Climate Change and individual weather events. Should we be reading something into these cold temperatures . Actually, we probably should. This still remains an interesting question about these kinds of cold waves and im a bit sceptical. But the physics is sound for this kind of mechanism. The question i think is, have we experienced on a Climate Change to detect and a tribute this kind of pattern of circulation change from the atmosphere . Excuse me, just to be cleared them, are cold snaps like this happening more less frequently . I dont think we can tell quite at this point. What do know is that winters are milder in general. These temperatures, which cold, are more unusual 110w than they would have been 30 years ago. As a society, we have adapted subconsciously to somewhat warmer winters so when we do get these kinds of cold temperatures which are not all that unusual 30 or a0 years ago, they seem to be more unusual to us today. So you are saying there could be something in this . I think so. Weve gotten to the point where there has been a change of one degree in the global average preindustrial times. We are finding more and more extreme weather events have been made more severe or more likely by this rather substantial change. We often say dont confuse weather and climate but we are reaching the point where individual weather events have a Climate Change component. Last week President Trump tweeted something along the lines of, bring back Global Warming because of this cold weather. As a scientist you might not want to comment on political things but you find comments like that frustrating . Oh, yes, we do. Especially when we know that the weather which is our day to day experience is actually influenced by climate. It is often confused by many people. That this event, or is it really Climate Change is it not, when you do need to examine the entirety of the weather record. Michael wehner speaking to me earlier. Stay with us on bbc news, still to come the panda who came in from the cold. A medical checkup for one of chinas most famous creatures. The most ambitious financial and political change ever attempted has got under way with the introduction of the euro. Tomorrow in holland, we will use money we picked up in belgium today, and then we will be in france and again it will be the same money. It has just got to be the way to go. George harrison, the former beatle, is recovering in hospital after being stabbed at his 0xfordshire home. A 33 year old man from liverpool is being interviewed by police on suspicion of attempted murder. I think it was good. You. Just good . No, fantastic thats better. This is bbc news. The latest headlines thereve been clashes across iran between Anti Government protesters and Security Forces. In the capital tehran, thousands have rallied in support of the government. Arctic conditions and extreme cold have prompted some us cities to postpone new years eve events. Egypts muslim and Christian Communities have joined family members at a wake for eleven People Killed in an attack on a coptic church. Police have stepped up security measures around churches ahead of coptic christmas celebrations. Russell trott reports. And the grief and the sadness, together less. Amongst. As hundreds from egypt was a question and was in communities attend the wa ke and was in communities attend the wake for those who died in an attack ona wake for those who died in an attack on a coptic church. The sense of outrage at the feeling that something positive needs to come out of such a tragedy. Translation the main reason of the terrorism are the purity of thought. Therefore i am calling on officials to purify the education curriculum that encourage hate. I wish for a School Subject called tolerance, where we would be allowed to approach and love one another. To coexist with one another and live as one heart in each of, where we have been raised. Egypts. At least 11 people were shot on friday at the coptic orthodox church. A gun and was wounded and arrested, the so called Islamic State group s later said it carried out the attack, though it provided no evidence that the claim. In an unrelated incident, Security Forces killed three suspected militants on the outskirts of giza, onafarm. Militants on the outskirts of giza, on a farm. Hundreds of police and soldiers have been killed by an insurgency led by is on the peninsula. This latest rate comes as security is stepped up ahead of optic christmas and so operations in the year and january. The president has offered his condolences and said he will continue the fight against terrorism and extremism. Egypts minority Coptic Christians have accused the minorities authorities of the making token gestures, attacks on churches they say will not help to calm community tensions. The authorities in nepal say theyve banned solo climbers from the countrys mountains, including mount everest, in an attempt to reduce accidents. Theyve also upheld a controversial decision to introduce restrictions on disabled climbers. Our south asia editor for the bbc world service, anbarasan ethirajan, explains more about the new rules. The government wanted to have more control over more than 400 mountains it has opened to the public, to all the mountaineers around the world, to see what exactly was happening. During the earthquake in 2015, many of the solo trekkers live aside mount everest. There are thousands of people people who go for a week long trek deep into the countryside, in the mountainside, without any communication gadget or anything. And many people were killed during the earthquake. It took months for the authorities to establish what really happened. And that is why the government is now saying we want to ensure safety, reduce accidents, you take someone with you, or a local guide who is more familiar with the terrain, who is more familiar with the mountains around that area, so we can ensure safety of these mountaineers. As people around the world get ready to mark the end of this year and the arrival of 2018, many cities will be celebrating new years eve with open air concerts, street parties and fireworks. But in europe, after a series of islamist attacks over the past 12 months against civilian targets, particular attention is being given to public safety. David campa nale reports. Live music, wine tasting, festive decorations, and good food all the vital ingredients in romania for a great party. But the tune in other european capitals as they prepare is so far more sombre. France has seen over 230 People Killed in attacks by islamist militants over the past three years. The paris police chief sa