A suicide car bombing against a U.S.-Afghan military convoy traveling along a main southern Afghan road Saturday wounded an American soldier, a local police chief said, according to AP. The attack occurred in Helmand province, which has suffered a spate of militant attacks recently, said Khan Mohammed, a district police chief. The convoy of Afghan soldiers and U.S. military trainers was traveling along the main road from Kandahar city, a former Taliban stronghold, to the western city of Herat. The attacker was killed in the blast and his vehicle was blown into several pieces, Mohammed said. He said the bombing damaged one U.S. vehicle and lightly wounded one soldier. A U.S. military spokesman, Lt. Col. Jerry O'Hara, said initial reports suggested there had been an explosion, but said it was still being investigated.