Suspected militants blew up a gas pipeline in Egypt’s Sinai peninsula on Tuesday and gunmen shot dead a policeman in the Suez canal city of Ismailia, security officials said.

Attacks in the Sinai and violence targeting soldiers and policemen across Egypt have surged since the military’s overthrow of Islamist president Mohamed Morsi in July.

In Ismailia, two unknown gunmen riding a motorcycle shot dead the policeman while he was standing at a traffic light, officials said.