Iran live updates: Trump says without ceasefire, there will be 'one big glow coming out of Iran'

President Donald Trump reiterated his threat for Iran to agree to make a deal to restart negotiations to end the war -- or face attacks again -- after the U.S. military said Iran fired "unprovoked" attacks on three U.S. Naval destroyers in the Strait of Hormuz.

"[J]ust like we knocked them out again today, we'll knock them out a lot harder, and a lot more violently, in the future, if they don't get their Deal signed, FAST!" Trump said on social media.

Trump said the three U.S. warships "transited, very successfully, out of the Strait of Hormuz, under fire."

"There was no damage done to the three Destroyers, but great damage done to the Iranian attackers," Trump said.

The president said Iran attacked the warships with missiles and drones, which the U.S. destroyed.

-ABC News' Meghan Mistry

Following strikes between the U.S. and Iran, President Donald Trump told ABC News the ceasefire is not over.

"The ceasefire is going. It's in effect," he said in a phone call.

He called the strikes a "love tap."

"It's just a love tap," he said.

-ABC News' Rachel Scott

The U.S. conducted "self-defense" strikes against Iranian targets after Iran fired at U.S. destroyers in the Strait of Hormuz on Thursday, according to U.S. Central Command.

"U.S. forces intercepted unprovoked Iranian attacks and responded with self-defense strikes as U.S. Navy guided-missile destroyers transited the Strait of Hormuz to the Gulf of Oman," CENTCOM said in a statement.

No U.S. assets were struck, it said.

The Israel Defense Forces said in a Thursday statement that its Wednesday airstrike in southern Beirut -- the first on the capital since a ceasefire was agreed between Israel and Hezbollah last month -- killed Ahmed Ali Balout, the commander of Hezbollah's elite Radwan Force commando unit.

Balout, the IDF said, was "eliminated in a precise strike, in the Dahiyeh area of Beirut."