Egypt's attorney general Talaat Ibrahim has ordered an investigation in an allegation filed against prominent opposition figure Mohamed ElBaradei.

Lawyer and member of the upper house Mamdouh Ismail had accused ElBaradei of inciting recent violence by the presidential palace.

In his complaint, Ismail accused the Nobel Laureate of breaching an Azhar agreement signed by different political forces that renounces violence.

"Writing on wall: violence and chaos will continue until (President Mohamed) Mursi and company listen to people's demands: new government, democratic constitution, independent judiciary," the former director of the International Atomic Energy Agency had posted on his Twitter account.