Cairo: Gunmen shot dead an Egyptian policeman in the restive Sinai peninsula on Wednesday, security officials said, a day after 11 policemen were killed in a roadside bombing.

Assailants in a car gunned down the sergeant in the north Sinai town of Al Arish, the officials said.

The shooting came a day after the deadliest attack on policemen in months, when a roadside bomb that exploded near an armoured police vehicle killed an officer and 10 conscripts.

Militants in Sinai have killed scores of policemen and soldiers in a string of attacks since the army overthrew Islamist president Mohammad Mursi in July 2013.

The attacks had waned over the past months amid a massive military operation that has tracked down dozens of suspected militants.

The main militant group active in Sinai, Ansar Beit Al Maqdis, has carried out deadly bombings against police facilities in Cairo and the Nile delta also, and tried to assassinate the interior minister using a suicide bomber in September 2013.

The militants, who want to implement Islamic law, say their attacks are retaliation for the police killings of hundreds of pro-Mursi protesters in street clashes after his ouster.