Gambia filed the case on behalf of the Organization of Islamic Cooperation.
Gambia's justice minister and attorney general, Abubacarr Marie Tambadou, told The Associated Press he wanted to "send a clear message to
Myanmar and to the rest of the international community that the world must not stand by and do nothing in the face of terrible atrocities that are occurring around us.
Myanmar's military began a harsh counterinsurgency campaign against the Rohingya in August 2017 in response to an insurgent attack.