Four police officers and a pair of civilians have been killed in a NATO airstrike in Afghanistan's Ghazni province, Afghan officials tell AFP. NATO planes had been summoned to help officers at a police post under Taliban attack. "The NATO planes went there to assist the police, but the post was bombed," says a local official. NATO is looking into the reports. Earlier this year, President Hamid Karzai forbade Afghan forces from seeking foreign airstrikes.