An Egyptian police official says boxes of ammunition, rocket-propelled grenades and anti-aircraft missiles have been found in a mountain in the northern Sinai peninsula.

The official, who spoke on condition of anonymity because he was not authorized to talk to the media, says the weapons were to be smuggled into the neighboring Gaza Strip.

The mountain is about 48 miles south of Rafah on the Gaza border. It has been used before as a shelter for local Islamic militant groups that carried out three bombing attacks starting in October 2004 that killed 125 people.