A suicide bomber detonated explosives near the heavily barricaded NATO headquarters in the Afghan capital, Kabul, on Saturday, September 8 killing four civilians, NATO and local officials said, according to Reuters.

The bomber, who was riding an explosives-laden motorcycle, blew himself up near the entrance of Camp Eggers, a NATO spokeswoman said, referring to a sprawling base that is home to 2,500 coalition trainers.

At least four civilians were killed and two more wounded, Kabul Police Chief Ayoub Salangi told Reuters.