Kandahar, Sept 21, SPA -- A mine exploded under a U.S.Humvee in a Taliban stronghold of southeastern Afghanistan,wounding two American soldiers, officials said Tuesday. The incident came within hours of the death of two U.S.soldiers in a fire-fight, adding to security concerns lessthan three weeks before landmark national elections. The mine explosion hit one of a group of American Humveeson patrol in Shinkay district of Zabul province on Monday,Gov. Khial Mohammed said.--SPA1431 Local Time 1131 GMT www.spa.gov.sa/203588