A roadside bomb killed an American service member and a nearby civilian Wednesday outside Afghanistan's capital, the US military said. The military vehicle was traveling from Kabul toward Bagram Air Field when it hit a roadside bomb, said Navy Lt. Junior Grade Thomas Graves, a US military spokesman. The blast killed one service member who was inside the vehicle, and one nearby civilian, Graves said. The incident happened in the early morning about 12 miles (20 kilometers) outside of Kabul, said Kabul province police spokesman Mustafa Wardak. He did not have any details on deaths or injuries. The road on which the blast occurred is the main route to Bagram from the capital, regularly traveled by military convoys, commercial trucks and civilian vehicles.