Since the removal of the Taliban in late 2001, the United States Armed Forces took control of Bagram Air Base and began using it as one of their main bases in Afghanistan. A Provincial Reconstruction Team (PRT) led by South Korea helped the locals with development activities in the province until 2014.[6] In mid-February 2011, five rocket-propelled grenades hit the newly built South Korean military base housing the provincial reconstruction team and civilian aid workers. No one was injured in the attack, but it came hours after a visit by South Korean Defense Minister Kim Kwan-jin, raising suspicions of Taliban involvement.