And prince harry and meghan are in nigeria as part of the dukes promotion of the invictus games. You are watching bbc news. More on those solar storms with an expert explaining how that happens, the link between the sun and those storms, in the next 15 minutes or so. Lets talk about ukraine for now. More now on Russian Forces launching a surprise new Ground Offensive in ukraine crossing the border into the northeastern Kharkiv Region. For months fighting has been focussed in the east where russia occupies large areas. Fridays attack may be an attempt to open a new front and intensify pressure on kharkiv, which is the countrys second largest city. Small groups of Russian Troops with armoured vehicles pushed through the front line military sources say they advanced a kilometre, before being pushed back amid reports of sustained russian shelling. Earlier i spoke to maria avdeeva, a security analyst from ukraine. I asked her to explain, what is happening in kharkiv city and in the region t