A roadside bomb hit a police vehicle on patrol in southern Afghanistan, leaving five policemen dead and one wounded, a senior police official said Saturday. The bomb hit the pickup truck in Trin Kot, the capital of Uruzgan province, late on Friday, senior provincial police officer Gulab Khan told a foreign news agency. "Five policemen were killed and one wounded," he said. There was no immediate claim of responsibility for the attack, but roadside bombs are frequently planted by Taliban insurgents fighting a decade-long war against NATO-led foreign troops and Afghan government forces.