Three Taliban suicide bombers have been killed and two injured, when their explosives-packed vehicle blew up on the way to a planned terrorist attack in Nangarhar Province, eastern Afghanistan , Xinhua reported on Tuesday, citing local officials. \"Five Taliban militants equipped with suicide vests were driving a car from Momandara district towards provincial capital Jalalabad to conduct a mass attack, but their explosive devices exploded prematurely killing three on the spot and badly injuring two others,\" Xinhua quoted the governor of Momandara district, Noor Agha Kamran, as saying. The Taliban has yet to comment on the blast.