Egypt opposition to protest after deadly week

CAIRO (Reuters) - Opponents of Egyptian President Mohamed Mursi have called mass demonstrations on Friday, raising the prospect of more bloodshed despite a pledge by politicians to back off after the deadliest week of his seven months in office.

Protests marking the second anniversary of the uprising that toppled Hosni Mubarak have killed nearly 60 people since January 25. It prompted the head of the army - the institution that effectively ran Egypt for six decades until Mursi's election - to warn that the state was on the verge of collapse.