Egypt's state news agency MENA says three policemen have been killed and four others injured when their car turned over while chasing a group of criminals in Sinai.

MENA said Sunday the policemen had been chasing a group of armed criminals on the international road in central Sinai.

Egyptian army and police are sending more reinforcements to arrest a group of militants who last Sunday gunned down 16 soldiers as they broke their daily fast for the holy month of Ramadan near the Egyptian-Israeli border.

The attackers then commandeered an armored vehicle and stormed across the border into Israel where six were killed.

MENA also said that a group of militants fired at a security checkpoint before escaping in Sheik Zweid on Saturday in northern Sinai. No casualties were reported.