AlHijjah 23, 1433, Nov 8, 2012, SPA -- At least three Afghan policemen were killed Thursday when a suicide bomber detonated his explosives-laden motorbike at a police checkpoint in southern Afghanistan, dpa quoted an official as saying. "The incident took place in Kandahar city this morning," provincial spokesman Javed Faisal said. Sources in the state-run Mirwais Hospital said they had received three bodies and seven injured.