A roadside bombing killed two U.S. service members in northern Afghanistan on Wednesday, officials said, pushing the death toll among American troops so far this month to 30. The attack occurred in the Baghi Shirkat area, about 30 kilometers (19 miles) west of Kunduz city, said Kunduz provincial government spokesman, Muhbobullah Sayedi. The troops were in a vehicle that hit a roadside bomb, he said. U.S. forces spokesman Lt. Col. Joseph T. Breasseale confirmed the deaths but did not provide further details.