Clashes intensify in Egypt

ROUGH CUT (NO REPORTER NARRATION)

STORY: Clashes between protesters and security forces in Cairo intensified on Tuesday as Egypt's army chief warned that political unrest was pushing the state to the brink.

The instability has provoked unease in Western capitals, where officials worry about the direction of a powerful regional player that has a peace deal with Israel. The United States condemned the bloodshed and called on Egyptian leaders to make clear violence was not acceptable.