Twin apparent suicide bombings rocked a gate to Kabul airport Thursday, killing at least 12 U.S. troops along with at least 13 civilians, Afriupdate News reports.

It was gathered that eleven Marines and an American medic were killed in the terror attacks, and a number of other American military service members were wounded.

The apparent suicide attacks struck just outside the perimeter of Hamid Karzai International Airport at an entrance known as Abbey Gate, Pentagon spokesman John Kirby said.

The blasts came hours after U.S. officials warned Americans and other Westerners to stay away from the vicinity of the airport, which remains the only way out of the country as an August 31 withdrawal deadline looms.