They were also found guilty of the attempted murder of 10 other police personnel.
The court ruled that Mubarak’s 7 ex-security commanders were innocent in the killings, during the 2011 revolution.
Brig. Gen. Mohammed Samir said that four assault boats were destroyed and that 32 attackers were arrested.
Egyptian President Abdel Fattah al-Sisi issued a decree on the extradition of foreign defendants.
The announcement came in an audio speech posted on the Egyptian militant group’s official Twitter account.
Residents say the forces dynamite several apartment buildings a day, and bulldozers flatten another 20 homes.
They say the blast took place shortly before midnight on Wednesday and that the four killed included two policemen.
At least two policemen have been killed and 10 others injured in a bomb blast in a train in Egypt.
An Egyptian court convicted eight men for “inciting debauchery” after appearing in an alleged same-sex wedding.
Mubarak is being retried on charges of complicity in the killing of around 850 unarmed protesters during the January, 2011.
“A full military reoccupation of Gaza was seriously considered,” Israel’s minister of intelligence Yuval Steinitz told BBC’s HARDtalk.
The UN claimed 70 per cent of those killed in Gaza are civilians, including women and children.
Palestine accepts new ceasefire offer to bring back Israel to negotiating a long-term ceasefire agreement.
Some 67 Israelis, all but three of them soldiers, have also died.
A Palestinian delegation including Hamas officials was due to arrive later on Saturday in Cairo for new talks.