reporter: some of the protesters chose to chase down the antimubarak excuse me. i s developing below. it s difficult to figure out what is happening. we saw a group of protesters chasing down the pro-mubarak supporters. as they were running, there were changes of molotov cocktails below us out of tahrir square. there s several volleys of gunfire. it s not over. it s no longer detained in the square. the question is how far will the protesters go? will they continue to chase down and hunt down the people who were penning them into tahrir square and firing fire bombs all afternoon? i think you just saw someone hit
lined up on the elevated highway. they were taking this position and throwing down molotov cocktails into the crowd. now, originally, the pro-mubarak protesters were in greater numbers and they squeezed all of the demonstrators who want mubarak to step down. at one stage, the demonstrators were surrounded with the exit and entrances blocked off. slowly, the protesters are pushing out moving their barricades further and further to where we are broadcasting now. in the last few minutes, they crossed a threshold and got too close. the promubarak supporters on the bridge pulled out and are
retrieved. they are almost all gone. the straglers are the ones being chased down now. the pro-mubarak supporters, i think we may have seen the last of them chased out here with the changes of molotov cocktail. whether they will come back remains to be seen. or whether they will pull back and to safer positions and try to fire with weapons on to the protesters. richard, if you are hearing our signal go in and out there, it s the difficulty of keeping the signal hot from cairo now. richard, i m not sure if you can hear me now. if you can, can you tell if there s further military involvement here? reporter: there is some military movement right now. it is an apc, a personnel
molotov cocktails at the protesters. it may have been an change of fire. it would be unfair to say only the pro-mubarak people were throwing them. in terms of what the tank did, does the smoke have a chemical smell or just something put up as a visible smoke screen? reporter: it s not tear gas. it can be any color to do what they just did, soldiers will carry small canisters of smoke on their uniform. to leave an area, they pop smoke, drop it, create a cover and leave. what is that we are hearing? reporter: that appears to be
of intervening role here? reporter: yes, it does. the movements of the tanks with the warning shots, and now with the tear gas in the air, i think we are seeing for the first time an intervention, because this is no longer just a battle line. before there was the front line, with protesters and government supporters battling back and forth with stones and rocks. now it is it s spilled out of the square with individuals chasing their rivals on the other side. and attacking them, potentially even worse than that. we are smelling tear gas and seeing some kind of intervention. although a relatively small one. there are not many vehicles here. you can see there s not the square s not been flooded with ambulances or troops. we are smelling a faint whiff of tear gas. in terms of what we were just looking at that vehicle that you said was set upon by protesters,