Suspected suicide blast wounds U.S. troops at Kabul airport, U.S, official says

Aug 26 (Reuters) - A suspected suicide bomb exploded outside Kabul airport on Thursday and U.S. service members were among the wounded, a U.S. official said, after the United States and allies urged Afghans to leave the area because of a threat by Islamic State.

The official said he was citing an initial report and cautioned that it could change. He said there were casualties but did not know how many or of what nationality.

Thousands of people have been gathering outside the airport in recent days. Western troops are...