CAIRO: Sporadic clashes broke out overnight between protesters demanding the ouster of Egypt President Mohamed Morsi and security forces outside the presidential palace, witnesses said on Sunday.

There were no reports of casualties from the confrontations, which follow violent clashes on Friday outside the presidential palace that left one person dead.

Late on Saturday several hundred mostly young protesters again gathered outside the compound and threw stones and petrol bombs at its walls, an AFP correspondent said.

One protester said they were there to pay homage to the young man killed on Friday, and they chanted “The people want the regime to fall!” - slogans used two years earlier against ousted veteran president Hosni Mubarak.

Security forces deployed outside the palace grounds fired tear gas overnight when protesters tried to storm one of the gates, the witnesses said.

The head of the military’s Republican Guards, tasked with protecting the presidency, said his troops would ignore “provocation” from protesters, the official MENA news agency reported.

The main opposition National Salvation Front (NSF), meanwhile, called for the resignation of Interior Minister Mohammed Ibrahim after a video showing a naked man being beaten by police during Friday’s protest went viral on the Internet.

The beating was “an inhumane spectacle...no less ugly than the killings of martyrs, which is considered a continuation of the security force’s programme of excessive force,” the opposition bloc said.

Ibrahim ordered a probe into the incident and said he would resign if “that’s what the people want,” his office said.

A statement said the presidency was “pained by the shocking footage of some policemen treating a protester in a manner that does not accord with human dignity and human rights” but described the incident as an “isolated act.”

Prosecutors say Hamed Saber, a 50-year-old construction painter, was found carrying petrol bombs.

Saber said on television that he had been set upon and stripped by protesters and that the police had saved him, but his daughter Randa disputed the account and said on television: “He’s lying; he’s scared.”

A nephew of Saber added: “He is lying because there is a lot of pressure on him.” On Sunday, calm prevailed in Cairo but the widening gap between the presidency and the opposition was evident.

Meanwhile, Egypt’s top court the Supreme Constitutional Court on Sunday postponed a ruling until March 3 on the legality of the Islamist-dominated commission that drafted a contested new constitution, state media reported.