An Egyptian court Thursday sentenced to death 10 men for killing a security guard for one of the judges hearing a case against ousted president Mohammad Mursi, an official said.

An Egyptian court Thursday sentenced to death 10 men for killing a security guard for one of the judges hearing a case against ousted president Mohammad Mursi, an official said.

Sergent Abdallah Metwally was part of a team of policemen guarding the home of judge Hussein Kandil, when he was gunned down in February 2014 in the city of Mansoura north of Cairo.

At the time, Kandil was the presiding judge in Mursi's trial for escaping from jail during the 2011 uprising that ousted longtime president Hosni Mubarak.

In May, Mursi and more than 100 co-defendants were sentenced to death in that trial for plotting jailbreaks and attacks on police.

The 10 men sentenced to death on Thursday were among 24 tried in a court in Mansoura in  connection with Metwally's murder, the official said. Verdicts against the 14 others will be announced in September.

In line with Egyptian law, the death sentences were referred to the mufti, the government's official interpreter of Islamic law, and the court will deliver its final ruling on September 7.

Mursi was ousted in July 2013 by then army chief and now President Abdel Fattah al-Sisi after mass protests against his one-year divisive rule.

Since Mursi's overthrow, hundreds of people have been sentenced to death in speedy trials amid a brutal government crackdown on his supporters.

Also on Thursday, the Mansoura court confirmed death sentences against four men accused of forming a "terrorist group", while nine others were sentenced to life.

The men were also accused of receiving weapons training in the Gaza Strip from Ezzedine al-Qassam Brigades, the armed wing of the Palestinian resistance movement Hamas.

Rights groups accuse the authorities of using the judiciary in its crackdown against Mursi supporters that has left hundreds dead and thousands jailed since his ouster.