CNN PRODUCER NOTE     wileyh23's father shot this video from their hotel room in Cairo along the main bridge into El Tahrir Square.

She said: 'Initially we were just in awe of all of the people coming across the bridge towards the square, then it started to become more violent. There was a constant sound of police firing tear gas canisters, sirens, and sounds of people pulling signs and benches from the street to drag over to the police lines. It was frightening to see the police regroup and retreat and to see the protesters throw things at those vehicles. Most of the people have dispersed now, but there are still quite a few people out and about. The police have definitely escalated the situation and began by firing tear gas at the protesters.'
- dsashin, CNN iReport producer