(ROUGH CUT ONLY - NO REPORTER NARRATION)<br/> <br />A coordinated attack involving at least three suicide bombers and a powerful car bomb took aim at the headquarters of the Kabul traffic department on Monday (January 21), followed by a clash between at least one insurgent and security forces, police said.<br/> <br />The attack took place just days after six suicide bombers attacked the Afghan spy agency in Kabul, killing two.<br/> <br />The Taliban claimed responsibility for Monday's attack.<br/> <br />"Today at 5 o'clock in the morning (8:30 p.m. EST Sunday, January 20) a number of mujahideen martyrs entered a government building close to an American training centre... Heavy fighting is ongoing," spokesman Zabihullah Mujahid said in a text message to media.<br/> <br />Police said it was not immediately clear if there were any casualties in the attack, which involved a second bombing, a tactic favoured by Islamist insurgents elsewhere but relatively rare in Afghanistan.<br/> <br />"About an hour after the initial attack (triple suicide bomb attack) a fourth man drove a car to the same compound and detonated another bomb," the head of the Kabul police criminal investigation department, Mohammad Zahir, told Reuters.<br/> <br />Violence across the country has been increasing over the last year, sparking concern over how the 350,000-strong Afghan security forces will be able to manage once foreign troops withdraw by 2014.
