Egypt has charged ousted president Mohammed Mursi and nine others with endangering national security.

This was said to have been done by leaking state secrets and sensitive documents to Qatar.
              
Relations between Qatar, a Gulf Arab state, and Egypt have been icy since July 2013.

In July 2013 Egypt's then-army chief Abdel Fattah al-Sisi toppled Mohammed Mursi after protests against his rule.
              
Qatar had supported Mr Mursi, who is already in jail along with thousands of Brotherhood members, many of whom have been sentenced to death on separate charges.
              
Security sources had said last month that Egypt was investigating Mr Mursi in connection with documents they said were leaked to Qatar and its satellite news channel Al Jazeera.
              
The Egyptian public prosecutor's office said its secret investigation had unearthed enough evidence of espionage to charge Mr Mursi and nine others in a criminal court.

The maximum penalty if convicted is death.             

The documents exposed the location of and weapons held by the Egyptian armed forces and detailed the country's foreign and domestic policies.
              
The Qatari Foreign Ministry in Doha did not immediately respond to requests for comment on the accusations. 

Al-Jazeera,which has been banned from Egypt, has denied any bias in reporting events there or any role in aiding the Brotherhood.
              
The Brotherhood dismissed the charges as political.
              
Mr Mursi faces trial in five other cases as well, on charges ranging from violence to insulting the judiciary.
              
While Mr Sisi has gone on to election as president, Mr Mursi and other Brotherhood leaders as well as the leading lights of the 2011 popular uprising that toppled autocrat Hosni Mubarak, many of them secular activists, now languish in jail.
              
Hopes of democratic change inspired by the revolt in the most populous Arab country have since faded.
              
Mr Sisi promised during his election campaign that the Muslim Brotherhood would cease to exist under his rule.
              
Egyptian security forces killed hundreds of Brotherhood supporters during protests against Mr Mursi's ouster and thousands of others have since been jailed.
              
Egypt's oldest Islamist movement, once among Egypt's most formidable political forces, has been branded a terrorist group.

Its assets have been seized by the state. 

The Brotherhood formally renounced violence as a means of political change decades ago and has denied any role in more recent bloodshed.