Hungary's government has decided to withdraw from the International Criminal Court, it said on Thursday, shortly after Israeli leader Benjamin Netanyahu, sought under an ICC arrest warrant, arrived in the country for a state visit.

Right-wing Hungarian Prime Minister Viktor Orban invited his Israeli counterpart to Budapest in November, a day after the International Criminal Court (ICC) issued its arrest warrant over allegations of war crimes in Gaza, where Israel launched its offensive following an attack by Hamas-led fighters on southern Israel. Hungary is a founding member of the ICC.

Israel has rejected the accusations, which it says are politically motivated and fuelled by antisemitism. It says the ICC has lost all legitimacy by issuing the warrants against a democratically elected leader of a country exercising the right of self-defence.

As a founding member, Hungary is theoretically obligated to arrest and hand over anyone subject to a warrant from the court, but Orban made clear that Hungary would not respect the ruling, which he called "brazen, cynical and completely unacceptable."

Hungary signed the ICC's founding document in 1999 and ratified it in 2001, but the law has not been promulgated.

Gergely Gulyas, Orban's chief of staff, said in November that although Hungary ratified the Rome Statute of the ICC, it "was never made part of Hungarian law," meaning that no measure of the court can be carried out within Hungary.

On Thursday, Gulyas told state news agency MTI that the government would launch the withdrawal process later in the day.

Hungary raised prospect of ICC exit after U.S. sanctions

Orban had raised the prospect of Hungary's exit from the ICC after U.S. President Donald Trump imposed sanctions on the court's prosecutor Karim Khan in February.

"It's time for Hungary to review what we're doing in an international organization that is under U.S. sanctions," Orban said on X in February.

The bill on starting the year-long process of withdrawing from the ICC is likely to be approved by Hungary's parliament, which is dominated by Orban's Fidesz party.

The Netherlands, which hosts the ICC, said that until withdrawal is complete, Hungary must still meet its duties.

"The full process to withdraw from the ICC takes about a year; during that time Hungary will have to fulfil all its obligations to the court," Dutch Foreign Minister Caspar Veldkamp told reporters on the sidelines of a NATO meeting in Brussels.

Netanyahu has enjoyed strong support over the years from Hungary's Orban, an important ally who has been ready to block EU statements or actions critical of Israel in the past.

ICC judges said when they issued the warrant that there were reasonable grounds to believe Netanyahu and his former defence chief were responsible for criminal acts, including murder, persecution and starvation as a weapon of war as part of a "widespread and systematic attack against the civilian population of Gaza."

The Israeli campaign has killed more than 50,000 Palestinians, according to Palestinian health authorities and devastated the Gaza Strip. The Hamas-led attack on Israel on October 7, 2023, killed 1,200 people and saw more than 250 taken hostage, according to Israeli tallies.

The ICC also issued an arrest warrant against a Hamas leader in November. His death was confirmed after the warrant was issued.