The announcement is reversal of plans announced by former Prime Minister Rishi Sunak, who was ousted earlier this month when Starmer’s Labour Party swept Conservatives from office in a landslide.

“This was a proposal by the previous government which was not submitted before the election, and which I can confirm the government will not be pursuing in line with our long-standing position that this is a matter for the court to decide,” a Starmer spokesperson said.

The court’s prosecutor, Karim Khan, accused Netanyahu, Gallant, and three Hamas leaders — Yehya Sinwar, Mohammed Deif and Ismail Haniyeh — of war crimes and crimes against humanity in the Gaza Strip and Israel.

Netanyahu and other Israeli leaders condemned the move as disgraceful and antisemitic. U.S. President Joe Biden also criticized the prosecutor and supported Israel’s right to defend itself against Hamas — as did Sunak.

ICC Prosecutor Karim Khan sought warrants for Netanyahu and Defense Minister Yoav Gallant in May over Israel’s war in Gaza, a symbolic blow that deepened Israel’s isolation over the war in Gaza.

Israel is not a member of the court. Even if warrants are issued, Netanyahu and Gallant do not face any immediate risk of prosecution. But the threat of arrest could make it harder for them to travel.

The ICC had set a deadline for Friday for the government to file a challenge.

Starmer’s decision puts the U.K. at odds with America, though his office on Friday described the decision as based in a strong belief in the separation of powers and the rule of law domestically and internationally.

The issue is a tricky one for Starmer and his party.

Starmer, a former human rights lawyer, has been under pressure from his party to take a tougher stand on the ongoing crisis in Gaza. London has also been the scene of huge protests decrying Israel’s actions intended to root out Hamas militants and has also reported record levels of antisemitic incidents.

Labour lost support and seats they had been expected to win after Starmer initially refused to call for a cease fire shortly after Israel retaliated for the Oct. 7 attack by Hamas militants. The party is still recovering from the stain of a scandal involving antisemitism allegations against the leadership of his predecessor, Jeremy Corbyn.

Starmer recently restored funding for the United Nations’ Palestine relief agency UNRWA, which had been suspended by Sunak’s government in January.

He has also said the Palestinian state has an “undeniable right” to be recognized as part of a peace process.

Sacha Deshmukh, Amnesty International U.K.’s chief executive applauded Starmer’s decision not to challenge the action at the Hague court.

“This was a totally misguided intervention by the last government,” Deshmukh said. “Instead of trying to thwart the ICC’s much-needed Palestine investigation, the U.K. should be backing efforts to bring all perpetrators of war crimes and possible genocide to justice.”