Gunmen kill four Egyptian policemen

Masked gunmen on a motorcycle have shot dead four Egyptian policemen south of Cairo, officials say.

Unknown gunmen have shot dead four policemen in an attack near Cairo. (AAP)

Masked gunmen on a motorcycle have shot dead four Egyptian policemen south of Cairo, the interior ministry says.

The gunmen opened fire on a police vehicle, killing those inside, in an area between the famed Giza pyramids west of Cairo and the Saqarra pyramids to the south, the ministry said in a statement.

The attackers' affiliation was not immediately clear.