The European Union slammed threats against the International Criminal Court (ICC) on Tuesday, after Washington vowed a sweeping campaign against the tribunal.

"We are strongly committed to international criminal justice and the fight against impunity. Attacks or threats against the court-elected officials, personnel or those cooperating with the court, are simply not acceptable," EU spokesperson Anouar El Anouni said.

Those comments come after US Secretary of State Marco Rubio launched a sweeping campaign to undermine the ICC that could include further sanctions and other measures.

In a video posted on X and a lengthy op-ed in the Wall Street Journal, Rubio vowed to "dismantle" the court, claiming it posed "an intolerable threat to US sovereignty."

"The ICC and its friends are waging a war against our country, not with bullets or missiles, but with statutes, compacts and the force of so-called international law," Rubio said in the video.