Egypt security deploys ahead of new pro-Morsi protests in defiance of crackdown

Egyptian security and military forces have deployed around Cairo, closing off traffic in some major thoroughfares and in the city center ahead of protests by supporters of ousted President Mohammed Morsi.

The Friday rallies are a test of whether Morsi's supporters can keep up their pressure despite an intensive security crackdown on the Muslim Brotherhood, from which he hails.

They come a day after deposed autocrat Hosni Mubarak was released from prison, adding to tensions.

Hundreds of Brotherhood members, including the group's leader, have been detained and hundreds killed in some of the worst bouts of violence since 2011.

Morsi supporters have kept up their campaign since his July 3 ouster. But rallies have petered out in recent days. Recent protests have descended into clashes with security and citizens.