Three guards from a private security company were killed after a team of suicide bombers attacked the firm’s offices

Three guards from a private security company were killed Tuesday after a team of suicide bombers attacked the firm's offices in northern Afghanistan, local officials said.
  
The attack, which triggered a firefight with security forces, happened in the city of Kunduz and also injured nine civilians and a policeman, said provincial spokesman Mahboobullah Shahedi.

One suicide bomber on Tuesday morning detonated a car bomb at the entrance to the office, allowing the other two to get inside, Shahedi said. "Three guards were killed, nine civilians were injured and one policeman was injured in the blast and fighting," he said.
  
The local deputy police chief, Abdul Rahman Aqtash, said the fighting had finished after the two remaining bombers detonated themselves inside the offices in quick succession. He confirmed the death toll given by Shahedi and explained that the nine wounded civilians were residents of a nearby house who were hurt by the initial car bomb blast.