NORTH SINAI, Oct 19 (Aswat Masriya) - Seven conscripts were killed on Sunday when a police armoured vehicle exploded in Sinai's al-Arish, leaving four more injured, security sources said.

Unidentified assailants planted an explosive device on a road in south Arish and remotely detonated it at the passage of the security vehicle, the sources said.

Egypt's security forces have intensified their security measures in North Sinai in reaction to repeated militant attacks that target army and police officials, which rose significantly since the military ouster of former President Mohamed Mursi last year.

A fact-sheet prepared by Egypt's ministry of foreign affairs put the death toll for terrorism acts which took place since January 2011 and until April 2014 at 971, including 664 security personnel.