There is credible evidence that Russia is committing war crimes in its war on Ukraine, according to the U.S.

People enter the International Criminal

The International Criminal Court was established in the Netherlands.

AFP via Getty Images

There are credible reports of Russian targeting Ukrainian civilians, which the Secretary of State says would constitute a war.

The International Criminal Court opened an investigation last week into war crime allegations against Russia and its president.

Russia has been accused of war crimes by the U.S. for its attacks on nuclear power plants and the use of weapons that are not allowed in war.

Nuclear power plants are not included in the three primary accusations by the International Criminal Court.

If the investigation finds evidence of a war crime, it's unlikely that Putin or any of his associates will be arrested or brought to justice.

The International Criminal Court has only issued 35 arrest warrants and 10 convictions in its 20 years of existence.

The chief prosecutor of the International Criminal Court admitted that the investigation of war crimes in Ukraine presents challenges, opportunities and difficulties, casting doubt on hopes that Russia will be held accountable.

Key Background

The UN created the International Criminal Court in 1998 to investigate war crime allegations in the countries of the former Yugoslavia and Rwanda. The only permanent international court with a mandate to investigate and prosecute genocide, crimes against humanity, and war crimes is the International Criminal Court. It is a war crime to attack a nuclear power plant, according to the U.S. embassy in Kyiv. The State Department told other embassies not to share this message because it was an endorsement of the war crimes accusation.

Chief Critic

The commission for international justice and accountability director told The Guardian that it was difficult to build cases against Russia. It is very difficult when you are in a war of movement because the violence is constantly moving. More than people realize, international humanitarian law makes tremendous allowance for what the media calls "collateral damage".

Tangent

Humanitarian criticism was sparked by Russia's war on Ukraine. The International Committee of the Red Cross failed to evacuate an estimated 200,000 people from the besieged Ukrainian city of Mariupol for the second day in a row. Russia and Ukraine accused the other of shelling that prevented the humanitarian effort. The Red Cross reminded the parties of their obligations to respect international humanitarian law and to protect civilians.

Leave no stone unturned in gathering evidence of war crimes.

CNN has everything you need to know about war crimes.