Kandahar, Sept 4, SPA -- Suspected Taliban rebelsambushed a convoy of trucks carrying supplies to a U.S.base in central Afghanistan, killing three Afghan policemenguarding it, officials said Sunday. Rebels also attacked a police checkpoint on the main roadfrom the southern city of Kandahar to the capital, Kabul,on Saturday, triggering a two hour gunbattle that left oneofficer dead and two wounded, said local police chiefGhulan Nabi. Some insurgents were also believed killed in the fighting,but it was unclear how many because the rebels took thebodies with them when they fled, he was quoted as saying by The Associated Press. The attack on the supply convoy occurred in Zabulprovince's Shahjoy district also on Saturday, said localgovernment chief Rozi Khan. He said the trucks returned tothe nearby city of Qalat after the fighting.--SPA1144 Local Time 0844 GMT www.spa.gov.sa/287173