The US has tried to bolster the Afghan government in Helmand Province with air support in their fighting against the Taliban, but the support appears to have gone horribly wrong today, as a US drone attacked and killed at least 15 Afghan police. The airstrike was targeting what the US thought was a Taliban compound in Helmand’s Gereshk District, but was actually a site used by Afghan security forces to meet and plan operations against the Taliban. A number were inside when the US attacked.