Deposed Egyptian president Mohamed Mursi is to stand trial on charges of committing and inciting violence, a state prosecutor has decided.

The prosecutor, Hesham Barakat, referred Mr Mursi and 14 other Brotherhood members to a Cairo criminal court on charges of "committing acts of violence, and inciting killing and thuggery", the state news agency reported.

The charges relate to violence outside the presidential palace last December, after Mr Mursi had ignited protesters' rage by expanding his powers.

Mr Mursi is also being investigated over his escape from jail during the 2011 uprising against Hosni Mubarak.

He is accused of murder and conspiring with the Palestinian group Hamas during the prison break, though no formal charges have been brought in that case.

Mr Mursi was overthrown by the army on July 3, just a year into his four-year term, following mass protests against his rule.

Since then, the authorities have mounted a fierce crackdown against the Brotherhood, rounding up most of its top leaders.

Halawas' detention extended

Egyptian authorities have extended by 15 days the detention period of four Irish citizens, who have been held in custody since a street protest in Cairo last month.

The four Halawa siblings were arrested after taking refuge in the al-Fateh mosque, following a protest in support of the deposed president, Mohamed Mursi.