At least six people have been killed by a bomb blast during a raid by security forces in Cairo's twin city of Giza.
Egyptian authorities said the explosion took place during a raid on an apartment where militants were preparing explosives.
At least three police officers were among those killed in the bombing, claimed by Egypt's affiliate of Islamic State.
A statement was circulated by the group's sympathisers on social media with a design and logo resembling previous IS statements.
The group has claimed multiple suicide bombings and attacks targeting the Egyptian army and police in the past year.