Feb 7 (Reuters) - Following are security developments in Iraq as of 0800 GMT on Wednesday: BAGHDAD - A roadside bomb targeting a police patrol killed a policeman and wounded three others in central Baghdad, police said. MOSUL - Gunmen raided a house, killing a man and his wife in the city of Mosul, 390 km (240 miles) north of Baghdad, police said. NEAR SUWAYRA - A roadside bomb exploded near a car, killing a woman and wounding two others in a village near the town of Suwayra, 40 km (25 miles) south of Baghdad, police said. BAGHDAD - A total of 30 bodies with gunshot wounds were found in different parts of Baghdad on Tuesday, police said. FALLUJA - A mortar round landed on a house on Tuesday, killing four people, including two women, in the Sunni stronghold of Falluja, 50 km (35 miles) west of Baghdad, police said. MAHMUDIYA - Police retrieved the bodies of three people on Tuesday in the town of Mahmudiya, 30 km (20 miles) south of Baghdad, police said. YUSUFIYA - Police retrieved the bodies of two people on Tuesday in the town of Yusufiya, 15 km (9 miles) south of Baghdad, police said. NEAR KUT - Iraqi police arrested three Iranians on Tuesday for illegally crossing the border near the city of Kut, 170 km (105 miles) southeast of Baghdad, police said.