outside the egyptian museum and inside and all around liberation square. we have so many dramatic developments to tell you about and i'm joined by ben wedeman and first i want to take you to ivan watson who has been there all day long. ivan, what's the latest, what was that tracer fire we heard, that heavy caliber fire we heard? >> reporter: i did see one or two rounds of tracer fire from my vantage point, anderson, but i think what is more disturbing is the single shots that have been going off, from quite close by. and then periodically seeing wounded men being carried away. one of those men seen with what really appeared to be a gunshot wound to the stomach. you've been watching from your vantage point, the violence, much of it involving petrol bombs or stones being thrown