United Nations, March 9 (RHC-Xinhua) -- The UN Security Council slammed the terrorist attack in Kabul, the Afghan capital on Wednesday, calling it heinous and cowardly.

Terrorism in all its forms and manifestations is a most serious threat to international peace and security, said the 15-nation UN body in a press statement. It called for perpetrators, organizers, financiers and sponsors to be brought to justice.

More than 120 people were killed or injured after gunmen disguised as medical personnel stormed a military hospital near Kabul's heavily fortified diplomatic quarters on Wednesday.

The self-proclaimed Islamic State is reportedly behind the attack.