Iraq’s ambassador to the United Nations is calling for the world body to investigate reports that ISIS is killing doctors who will not harvest organs for sale on the black market.

Ambassador Mohamed Alhakim said that dozens of bodies have been found in shallow graves with surgical incisions.  Examinations of the bodies show that organs like the kidneys, livers and hearts missing.

“Surgeries take place within a hospital and organs are quickly transported through networks specialized in trafficking human organs. Mosuli said that the organs come from fallen fighters who were quickly transported to the hospital, injured people who were abandoned or individuals who were kidnapped,” a report printed by the London Daily Mail read.

Alhakim said they have confirmed reports of a dozen doctors being killed in Mosul for refusing to take organs from dying people.  He said that the group is using the tactic more to offset losses in exports of oil from seized drilling rigs.

The UN’s envoy to Iraq, Nikolay Miadenov, confirmed some of the ambassador’s claim sand said that 790 people have been confirmed dead from terrorism at the hands of ISIS.