Egypt's vice-president has resigned, and a state of emergency has been declared, after 149 demonstrators were killed by police in Cairo.

A night time curfew is underway in Egypt as part of a state of emergency after security forces stormed two camps made up of supporters of former President Mohammed Morsi.

A Sky News cameraman has been killed in a day of bloodshed in Cairo.

Mick Deane had worked at Sky for 15 years and had been based in Washington and Jerusalem.

The Health Ministry says 149 people have died, but the Muslim Brotherhood says it's many more.

International leaders have called for calm, while the former vice-president says he can't support the police tactics.

The White House spokesman Josh Earnest, has urged the Egyptian military to "show restraint".