President Donald Trump says on social media that Israel and Iran have agreed to a “complete and total ceasefire” to be phased in over 24 hours.

Iran carried out a missile attack on the United States’ Al Udeid Air Base in Qatar on Monday, according to a U.S. official, two days after the U.S. struck three nuclear sites in Iran. There are no reports of casualties at the base,

It remained to be seen whether the attack would ignite a regional war or provide the U.S. and Iran with an off-ramp from their intensifying confrontation.