THREE American service members and a U.S. contractor were killed when their convoy hit a roadside bomb Monday near the main U.S. base in Afghanistan, the U.S. forces said. The Taliban claimed responsibility for the attack.

The U.S. and NATO Resolute Support mission said the four Americans were killed near the Bagram Air Base, north of Kabul, while three others were wounded in the explosion. The base in Bagram district is located in northern Parwan province and serves as the main U.S. air facility in the country.

The wounded were evacuated and are receiving medical care, the statement said. It added that in accordance with U.S. Department of Defense policy, the names of service members killed in action were being withheld until after the notification of next of kin.

The Taliban said they launched the attack and that one of their suicide bombers detonated his explosives-laden vehicle near the NATO base. The conflicting accounts could not be immediately reconciled.

Local officials said yesterday at least five Afghan civilians were wounded in the commotion after the attack on the American convoy. Four were passers-by and the fifth was a driver of a car going down the road, said Abdul Raqib Kohistani, the Bagram district police chief. Abdul Shakor Qudosi, the district administrative chief in Bagram, said American soldiers opened fire immediately after their convoy was bombed.(SD-Agencies)