Tense standoff in Cairo's Tahrir Square

Protesters have continued to gather in Cairo's Tahrir Square late into the night - with a message of defiance for Eygpt's military rulers. The square, which has been the scene of street battles between riot police and activists demanding an end to Egypt's military leadership, was relatively calm on Sunday night after protesters regained control of the area and began calling for reinforcements. Al Jazeera's Tarek Bazley reports on the day's events.