The Prosecutor General of Ukraine, Andriy Kostin, urged the International Criminal Court (ICC) on Friday to take up a case against Russia for the strike on Okhmatdyt Children’s Hospital last week.

The hospital is located in Kyiv and is the largest children’s hospital in Ukraine. It houses the only oncological laboratory in the country. Although hundreds of individuals were evacuated ahead of the strike, some were still in the hospital when it happened. At least 42 civilians were killed, and 190 injured, with the evaluation still ongoing. In addition to the human impact, the attack struck at some of the most vital medical facilities of the country, weakening Ukraine’s capacity to provide quality medical treatment to patients.

Many have condemned Russia’s actions as war crimes. The executive director of the Human Rights Watch, Tirana Hassan, said that “attacks directed at medical facilities are war crimes under international humanitarian law, and the strike that hit Okhmatdyt children’s hospital should be investigated as a potential war crime.” Further, the director of Okhmatdyt Hospital, Dr. Volodymyr Zhovnir, said that “striking a children’s hospital, where children are treated for cancer and other heavy diseases, is not just a war crime, it is far beyond the limits of humanity.”

Russia has denied any involvement in the strike and said that the strike was a result of Ukrainian missiles veering off course.

The ICC is mandated to investigate and try “individuals charged with the gravest crimes of concern to the international community: genocide, war crimes, crimes against humanity and the crime of aggression.”