Israel has informed the International Criminal Court (ICC) that it will appeal the arrest warrants for Prime Minister Benjamin Netanyahu and his former Defense Minister Yoav Gallant over their leadership in the Gaza war, Netanyahu’s office said on Wednesday.

Netanyahu also said Republican U.S. Sen. Lindsey Graham informed him “about a number of measures that he is promoting in the U.S. Congress against the International Criminal Court and against countries that would cooperate with it,” Netanyahu said.

The ICC issued arrest warrants last Thursday for Netanyahu, his former defense chief, and Hamas military leader Ibrahim Al-Masri, known as Mohammed Deif, for alleged war crimes and crimes against humanity in the Gaza conflict.

“Israel today submitted a notification to the International Criminal Court of its intention to appeal to the court, along with a request to postpone the execution of the arrest warrants,” Netanyahu said.