The Cairo Criminal Court handed down death sentences to three defendants and life in prison for eight others, over the failed assassination of Alexandria's chief of the security, Mostafa al-Nemr, in 2018.
The court also ordered the defendants to pay EGP244,357 in damages.
The sentences are final and irreversible and authorities said the criminals cannot file for an appeal.
Former Attorney General Nabil al-Sadik referred the 11 defendants to the Emergency State Security Court on charges of involvement with the Hasm armed movement, which is affiliated with the Muslim Brotherhood that has been blacklisted as terrorist by Cairo.
The defendants are accused of leading and joining Hasm from 2016 until 2018. The terrorist group aims to oust the ruling regime, undermine national unity and attack individuals, public establishments, police, judiciary and armed forces.
On the day of the attack, the group headed to Moaskar el-Romany street in Alexandria where one defendant parked a booby-trapped car, which was detonated when Nemr’s convoy drove by. Two policemen were killed and five people were wounded in the attack.
The prosecution charged the defendants with joining a terrorist group and premeditated murder of the two police officers.
They are also charged them with the intention of killing the director of Alexandria security and his guards by detonating a bomb-laden vehicle.
The prosecution also accused them with the attempted murder of Nemr and six of his guards who were present at the site of the attack.