Nobel Peace Prize laureate Navi Pillay has called US sanctions on the International Criminal Court "unacceptable," joining growing international criticism of the measures. Ukraine has also thrown its weight behind the court following the US action.

In Canada, jurists are urging the government to intervene as the Trump administration moves against the ICC. Japan's Motegi separately raised his country's position on the court with US Secretary of State Rubio, pointing to wider diplomatic concern over Washington's moves to weaken the tribunal.