Nine people, including six policemen, were killed in a Cairo suburb near the pyramids on Thursday when a makeshift bomb went off as police prepared to raid a militant hideout, security sources said.

The Interior Ministry said in a statement that its security forces had arrived in their vehicles to raid an apartment in Giza and found the building booby-trapped.

The bomb exploded as police raided an apartment where militants were preparing explosives.

The device went off when they tried to defuse it.

Ten people were wounded, the sources said.