KABUL, Afghanistan -- A man in a police uniform opened fire on U.S. and Afghan soldiers Monday at a base in eastern Afghanistan, killing two American troops in what may be the latest in a series of insider attacks by Afghans against allied security forces.
Afghan news media reported that three Afghan soldiers also were killed in the shooting in Wardak, the volatile province in eastern Afghanistan where President Hamid Karzai last month ordered U.S. special forces troops to cease operations.
U.S. military officials said it wasn't immediately clear if the gunman was an Afghan police officer or posing as one.
Afghan officials in Wardak said there were multiple casualties but declined to discuss the incident further because investigators were still working at the scene of the attack at an Afghan army base in remote Jalrez district.
Insider attacks in Afghanistan spiked last year, with members of Afghan security forces killing 61 personnel from the U.S.-led coalition, the vast majority of them Americans.