Longtime ties between U.S. President Donald Trump and Israeli Prime Minister Benjamin Netanyahu may be permanently damaged following Israel’s repeated bombings in Iran, according to a report cited by Al Jazeera. The information was attributed to Tim Constantine, a writer for The Washington Post and host of The Capitol Hill Show, who described Trump’s recent anger and disappointment toward Netanyahu as unprecedented.

Al Jazeera reported that Trump and Netanyahu spoke on Monday, after which the U.S. president posted on social media urging both Israel and Iran to immediately stop the fighting. Constantine suggested that Trump’s frustration had reached a level from which their once warm and friendly relationship might never recover.

The report underscores growing tension between Washington and Tel Aviv over Israel’s military actions in Iran, signaling a possible long-term shift in the personal and political dynamics between the two leaders.