An unknown number of civilians have been killed in a US-led NATO bombing in Afghanistan’s Nangarhar province. Afghan witnesses say the victims were in a house and a group of parked vehicles when they were struck by NATO missiles. NATO says it was responding to insurgent fire after an operation in the region. Witnesses say the civilian death toll could be anywhere between a dozen to thirty-two. The deaths come as the Afghan government has put the number of Afghan civilians killed in a US Marine attack in Helmand province last month at thirty-nine. The victims were inside a house where Taliban fighters had taken up positions on the roof. The US contends the civilian toll is far lower, at six deaths.