Get breaking news alerts and special reports. The news and stories that matter, delivered weekday mornings.

The number of civilians killed in Afghanistan rose to record-setting levels in 2016 — including a 25 percent surge in child victims — the United Nations said Monday.

An increase in attacks perpetrated by ISIS-affiliated groups and a near-doubling in the number of Afghans killed by airstrikes were blamed for the rise.

Let our news meet your inbox. The news and stories that matters, delivered weekday mornings. This site is protected by recaptcha

“The killing and maiming of thousands of Afghan civilians is deeply harrowing and largely preventable,” Tadamichi Yamamoto, the United Nations' Secretary-General’s Special Representative for Afghanistan told a news conference unveiling the figures [PDF link here].

In addition to the years-long Taliban insurgency, Afghanistan now faces regular attacks tied to ISIS militants and the danger posed by unexploded ordnance.

A total of 3,498 civilians were killed and 7,920 were wounded in conflicts there in 2016 — a combined increase of three percent over the previous year — U.N. investigators said.

The casualties included 923 dead children, a 25 percent rise on the previous highest-recorded figure.

People driven from their homes by violence sit in front of a tent in Enjil, Afghanistan. JALIL REZAYEE / EPA

Airstrikes, including some carried out by U.S. warplanes, accounted for 250 deaths and 340 injuries — double the 2015 figure and the highest since 2009.

Anti-government forces, mainly the Taliban, were responsible for almost two-thirds of the overalls deaths while pro-government forces were responsible for almost one quarter, the U.N. said.

According to The Associated Press, U.S. officials have only acknowledged possible civilian casualties in one incident in Kunduz province in November, when the U.N. said as many as 32 noncombatants were killed in a joint U.S.-Afghan raid.

Yamamoto condemned what he called "yet another record year of civilian suffering.”

“Unless all parties to the conflict make serious efforts to review and address the consequences of their operations, the levels of civilian casualties, displacement and other types of human suffering are likely to remain at appallingly high levels,” he said.