At least 52 Egyptian police and conscripts were killed and six more wounded in a gun battle on Friday during a raid on a suspected militant hideout in Egypt's western desert, three security sources said on Saturday.
Clashes occurred when eight militants opened fire at a security force that was heading to arrest them, according to local media.
The interior ministry released a statement on the operation on Friday but has so far not given any details on casualties. At least 23 police officers were killed and the other victims were conscripts, the sources said.
Security sources on Friday said authorities were following a lead to a militant camp in the desert where eight suspected members of Hasm Movement were believed to be hiding.The group has claimed attacks around Cairo targeting judges and police.
A convoy of four SUVs and one interior ministry vehicle was ambushed from higher ground by militants firing rocket-propelled grenades and detonating explosive devices, one senior security source said.