U.S. President Donald Trump on Monday demanded both Iran and Israel halt the military attacks on one another “immediately.”

“Israel and Iran must immediately stop ‘shooting,’” Trump wrote in a post on Truth Social.

Trump’s remarks came after Iran launched missiles at Israel on Sunday night for the first time since the U.S.-backed ceasefire took effect in April. Tehran said the attack was retaliation for Israeli strikes on Hezbollah targets in Lebanon earlier that day.

Although Trump urged Israeli Prime Minister Benjamin Netanyahu not to reciprocate, Israel responded with strikes of its own during the early hours of Monday morning, ignoring Trump’s calls for restraint.