The first six months of this year were the deadliest for civilians in Afghanistan since the start of the conflict in 2001.
1,462 people died from January to June, a 15 percent increase on the same period last year according to a report by the UN.
Fewer people died as a result of attacks by government forces, but more people were killed in NATO air strikes.
They cost the lives of 79 people during the period in question – a fact which is fuelling anger among Afghans.
The report comes days before NATO is due to begin handing over responsibility for some provinces to Afghan security forces.