As of 2014, the Afghan National Security Forces (ANSF) have been in charge of security in and around the city. Kabul is periodically the scene of deadly bombings carried out mostly by the Taliban but also by the Haqqani network, ISIL, and other anti-state groups. Government employees, soldiers and ordinary civilians have all been targets of attacks. The Afghan government called the actions of the terrorists war crimes. The deadliest attack yet was a truck bombing in May 2017. Since 2010, a series of manned checkpoints called the Ring of Steel operates in the city.