Quote:Egypt's army has been deployed to cities along the Suez Canal where the violence has been at its worst

Quote:Egypt's armed forces chief has warned the current political crisis "could lead to a collapse of the state".

General Abdul Fattah al-Sisi, in comments posted on the military's Facebook page, said such a collapse could "threaten future generations".

He made his statement following a large military deployment in three cities along the Suez Canal where a state of emergency has been declared.

More than 50 people have died in days of protests and violence.

In response, President Mohammed Morsi has cut short a planned European trip.

His spokesman said he would still visit Germany on Wednesday as planned, but the two-day trip has been cut to just a few hours and a visit to France has been cancelled.

On Monday night, thousands of people in Port Said, Ismailia and Suez - where some of the worst unrest has been - ignored a night-time curfew imposed by Mr Morsi to take to the streets.

Thousands were again on the streets of Port Said on Tuesday for the latest funerals of those killed, with mourners calling for the downfall of the president.