The Red Cross is pausing its work in Afghanistan following a recent attack on its workers, which the aid agency called despicable.

Six workers were killed in an ambush of their convoy in northern Jowzjan on Wednesday by suspected militants. Two others are missing.

Speaking in Geneva ICRS director of operations Dominik Stillhart said they needed to temporarily suspend aid activity to understand what happened.

“For the time being, we decided to put on hold all our operations in the whole country because we also need and want to mark what is a horrible incident, which came as a huge shock for all our staff, first and foremost in Afghanistan, but also to respect the families.

ICRC’s work in Afghanistan is the fourth largest humanitarian operation in the world.

Meanwhile, Pakistan has condemned the attack on ICRC workers in Afghanistan.