Muslim Brotherhood leader, Essam al-Erian, holds Egypt's general prosecution accountable for the lack of evidence in the cases of killing protesters and what followed from exculpating the accused.

"The ongoing soap opera of acquittals in the cases of killing protesters indicates lack of evidence; the responsibility of the general prosecutor", Erian posted on Twitter on Monday morning.

The Brotherhood leader insisted that "the people wish for justice and not just vengeance", adding that "a solution is in demand".

A criminal court exculpated on Sunday head of Port Said security and his three aides of killing protesters during the 18 days of revolt that toppled Hosni Mubarak.

Similarly, a Shubra criminal court on Thursday exculpated head of Kalyoubia security and three of his aides also of killing protesters.