South Africa asked the International Court of Justice (ICJ) on Friday for an urgent order declaring that Israel was in breach of its obligations under the 1948 Genocide Convention in its crackdown against the Palestinian group Hamas in Gaza.
The ICJ, sometimes known as the World Court, is the UN venue for resolving disputes between states. South Africa's filing alleged Israel was violating its obligations under the treaty, drafted in the wake of the Holocaust, which makes it a crime to attempt to destroy a people in whole or in part.
It asked the court to issue provisional, or short-term, measures ordering Israel to stop its military campaign in Gaza, which it said were "necessary in this case to protect against further, severe and irreparable harm to the rights of the Palestinian people".
No date has been set for a hearing.
Israel launched an assault on Hamas-ruled Gaza on Oct 7, killing more than 21,000 people, Palestinian health officials say.
The court application is the latest move by South Africa, a vociferous critic of Israel's war, to ratchet up pressure after its lawmakers last month voted in favour of closing down the Israeli embassy in Pretoria and suspending all diplomatic relations until a ceasefire was reached in the war.
In a statement from South Africa's Department of International Relations and Cooperation (DIRCO), the government said the application against Israel was filed Friday.
"Israel, since 7 October 2023 in particular, has failed to prevent genocide and has failed to prosecute the direct and public incitement to genocide," DIRCO said in a statement.
South Africa has backed the Palestinian cause for statehood in Israeli-occupied territories for decades, likening the plight of Palestinians to those of the Black majority in South Africa during the repressive apartheid-era, a comparison Israel vehemently denies.