Israeli Prime Minister Benjamin Netanyahu will be temporarily leaving his official responsibilities to an ally, as he undergoes surgery for a hernia on Sunday. Netanyahu’s office broke the news in a statement, revealing that the hernia was discovered when he had a routine checkup on Saturday night.

Having consulted with his doctors, Netanyahu decided on surgically repairing the hernia.

According to his office, Netanyahu will be under full anesthesia and be unconscious during the procedure.

While he undergoes the surgery, Justice Minister Yariv Levin will take over as acting prime minister.

The office did not reveal further details about Netanyahu’s diagnosis.

Netanyahu has had a health scare before, as doctors revealed last year that he had a heart condition. He had to have a pacemaker implanted to control his heartbeat.

His surgery on Sunday comes amid pressure for him to come to a ceasefire agreement in the war between Israel and Hamas. Last week, he canceled a planned meeting of an Israeli delegation to Washington after the U.S. allowed a U.N. resolution that called for a cease-fire in Israel’s incursion of Gaza to pass.

President Joe Biden’s administration had decided to abstain from voting on the resolution instead of vetoing it.

Shortly after the resolution passed, Netanyahu’s office released a statement, saying, “Today’s resolution gives Hamas hope that international pressure will force Israel to accept a ceasefire without the release of our hostages, thus harming both the war effort and the effort to release the hostages.”

“Prime Minister Netanyahu made it clear last night that should the US depart from its principled policy and not veto this harmful resolution, he will cancel the Israeli delegation’s visit to the United States. In light of the change in the US position, PM Netanyahu decided that the delegation will remain in Israel,” the statement added.

The meeting might end up still happening, as press secretary Karine Jean-Pierre said that officials and Netanyahu are trying to decide on a new date for the meeting.

“We are working with [Israeli leaders] to find a convenient date that’s obviously going to work for both sides. But Netanyahu’s office has agreed to reschedule that meeting that would be dedicated to Rafah, which is a good thing,” Jean-Pierre stated, adding that the administration will share whatever date gets decided on.