Military tank in Tahrir Square
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Egypt protests: War planes fly low over Cairo

Leading Egyptian opposition figure Mohamed ElBaradei has joined thousands of protesters in Cairo defying a curfew to demand President Mubarak stand down.

In a tense sixth day of protests, the army sent tanks into the Tahrir (Liberation) Square in Cairo only to see them blocked by demonstrators.

Air force jets and a helicopter repeatedly flew low over the square.

Jeremy Bowen reports from Cairo.

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