Outgoing European Union foreign policy chief Josep Borrell called on all EU member states on Thursday to respect decisions by the International Criminal Court, including the arrest warrant against Israel's Prime Minister Benjamin Netanyahu.

"We cannot undermine the International Criminal Court. It is the only way of having global justice," Borrell, whose term as the EU's top diplomat ends this month, told reporters in Brussels.

"They're not political. It's a legal body formed by respected people who are the best among the profession of judges."

The ICC issued arrest warrants last week for Netanyahu, his former defence chief Yoav Gallant and a Hamas leader, for alleged war crimes and crimes against humanity in the Gaza conflict.

Though all EU member states are signatories to the ICC's founding treaty, France said on Wednesday it believed Netanyahu had immunity to actions by the ICC, given Israel has not signed up to the court statutes.

Italy has said it is not feasible to arrest Netanyahu as long as he remains head of Israel's government.

ICC judges said there were reasonable grounds to believe Netanyahu and Gallant were criminally responsible for 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".

Israel, which launched its offensive in Gaza in response to Hamas's deadly attack on southern Israeli communities on Oct. 7, 2023, has said it will appeal against the warrants for Netanyahu and Gallant.