Oct 28 (Reuters) - Following are security developments in Iraq at 1000 GMT on Sunday. HAWIJA - Gunmen killed a policeman in a drive-by shooting in central Hawija, 70 km (43 miles) southwest of Kirkuk, police said. BAGHDAD - Four bodies were found in different districts of Baghdad on Saturday, police said. MOSUL - Gunmen wounded a police colonel and his driver when they opened fire on their car in northern Mosul, 390 km (240 miles) north of Baghdad, police said. ISKANDARIYA - Police arrested five gunmen in a Shi'ite mosque containing weapons in Iskandariya, 40 km (25 miles) south of Baghdad, police said.