THE HAGUE, Jan 12 (Reuters) - Israel on Friday rejected as false and "grossly distorted" accusations brought by South Africa at the U.N.'s top court that its military operation in Gaza is a state-led genocide campaign against Palestinians.

Arguing it was acting to defend itself and was fighting Hamas, not the Palestinian population, Israel called on the International Court of Justice (ICJ) to dismiss the case as groundless and reject South Africa's request to order it to halt the offensive.

"This is no genocide," lawyer Malcolm Shaw said.

South Africa told the court on Thursday that Israel's aerial and ground offensive - which has laid waste to much of the enclave and killed almost 24,000 people, according to Gaza health authorities - aimed to bring about "the destruction of the population" of Gaza.

Israel rejected the accusations, saying it respected international law and had a right to defend itself.

Israel launched its war in Gaza after a cross-border rampage on Oct. 7 by militants from Hamas, which is sworn to Israel's destruction. Israeli officials said 1,200 people were killed, mainly civilians, and 240 taken hostage.

"The appalling suffering of civilians, both Israeli and Palestinian, is first and foremost the result of Hamas' strategy," the Israeli foreign ministry's legal adviser, Tal Becker told the court.

"If there were acts of genocide, they have been perpetrated against Israel," Becker said. "Hamas seeks genocide against Israel."

The 1948 Genocide Convention, enacted in the wake of the mass murder of Jews in the Nazi Holocaust, defines genocide as "acts committed with intent to destroy, in whole or in part, a national, ethnical, racial or religious group".

Photo from Reuters