Militants in army uniforms assail Afghan government buildings By Ben Brumfield and Masoud Popalzai, CNN April 3, 2013 -- Updated 1108 GMT (1908 HKT) NEW: Militants are dressed like government soldiers Insurgents opened the attack with explosives The blast caused widespread damage Afghan government forces engaged the insurgents Kabul, Afghanistan (CNN) -- Insurgents killed at least six people and wounded 72 others in an attack on Afghan government buildings in the southwestern province of Farah on Wednesday, provincial government spokesmen said. The attackers wore Afghan National Army uniforms and drove army vehicles to gain access to the area, said police chief Noor Agha Kantoz. The militants opened the attack by detonating a vehicle laden with explosives, said Mohammad Akram Ekhpelwak, a spokesman for the province's governor. The blast wrecked the targeted buildings and others nearby in the capital city of Farah. The main targets appeared to be the courthouse and the attorney general's office. Kantoz said that two suicide attackers detonated explosives while storming the buildings. Soldiers from the Afghan National Army engaged the enemy, killing at least two, he said, and continue to battle fighters who have taken cover in the courthouse. The wounded have been taken to a local hospital, Ekhpelwak said. Most of them were civilians. CNN's Masoud Popalzai reported from Kabul; CNN's Ben Brumfield reported from Atlanta.