ARISH, Egypt, Ramadan 24, 1433, Aug 12, 2012, SPA -- Egyptian security forces killed seven suspected militants on Sunday during raids on hideouts in two villages in northern Sinai, AP quoted security officials as saying. Tensions in Sinai, the desert peninsula that borders Israel and the Gaza Strip, have escalated sharply over the past week after suspected militants killed 16 Egyptian soldiers near the border. Sunday's deaths were the first reported casualties among suspected militants since Egypt launched a major offensive against the groups and sent reinforcements to the area following the attack last Sunday. Security officials said the raids by troops and police backed by armored vehicles targeted the villages near El-Arish of al-Ghora and al-Mahdiyah. They seized landmines, an anti-aircraft missile, heavy machine-guns and grenades. They spoke on condition of anonymity because they were not authorized to speak to the media. They said the seven suspected militants were killed when the forces shelled a house in which they took cover after an exchange of fire. The shelling set the house on fire along with a car and a motorbike parked outside.