Civilian casualties in Afghanistan touched a record high in the first half of 2015, according to UN figures released Wednesday.

Civilian casualties in Afghanistan touched a record high in the first half of 2015, according to UN figures released Wednesday.

Total casualties -- defined as the number of civilians killed or wounded -- increased one percent between January and June compared to the same period last year, with 1,592 civilians killed and 3,329 injured, the United Nation's Mission's for Afghanistan (UNAMA) said in a report.

The figures marked a six percent fall in civilian deaths but a four percent increase in injuries.

Ground combat is causing more deaths and injuries than improvised explosive devices (IEDs) in a worrying sign of spreading conflict, the report said, adding that the conflict was taking a particularly heavy toll on women and children.

"The cold statistics of civilian casualties do not adequately capture the horror of violence in Afghanistan, the torn bodies of children, mothers and daughters, sons and fathers," said UNAMA chief Nicholas Haysom.

"The statistics in this report do not reveal the grieving families and the loss of shocked communities of ordinary Afghans. These are the real consequences of the conflict in Afghanistan."

The figures highlight growing insecurity as the Taliban insurgency spreads north from its traditional southern and eastern strongholds.

UNAMA attributed 70 per cent of civilian casualties to "anti-government elements" including the Taliban.

Female casualties soared 23 per cent and child casualties increased by 13 per cent, the report added, as civilians are increasingly caught in the crossfire.