CAIRO, Jan. 26 (UPI) -- Security guards at the American University in Cairo fired on demonstrators in Tahrir Square during the Egyptian revolution, lawyers for the former regime said.
Former President Hosni Mubarak is on trial for murder along with his sons and former Interior Minister Habib el-Adly.
Demonstrators flocked to central Tahrir Square on Wednesday to mark the first anniversary of the start of the revolution. More than 800 demonstrators were killed during the uprising.
Surveillance tapes allegedly show policemen firing on protesters and Adly is accused of giving orders to put weapons in the hands of the police during the revolution.
Lawyers for the former interior minister told a Cairo court that security guards at the American University in Cairo, adjacent to the square, fired on protesters and later blamed Egyptian security forces, Egyptian news service al-Ahram reports.
His legal defense team defended a Jan. 28, 2011, decision to cut mobile phone lines in the country by saying cellular providers were spying for Israel. The lines were cut, the defense team said, for "security reasons."
More demonstrations are planned in Tahir Square Friday. Egyptians are frustrated with the slow pace of reform enacted by the ruling Supreme Council of Armed Forces that took control over the country after Mubarak's regime fell apart.
In a tiered set of parliamentary elections, Egyptians voted in a new set of lawmakers dominated by the Muslim Brotherhood's Freedom and Justice Party.