U.S. President Donald Trump has warned Iran that the U.S. will destroy one bridge or power plant each time Iran shoots at a ship in the Strait of Hormuz.

In his warning on social media, the president returned to earlier threats to target civilian infrastructure in retaliation for Iranian attacks. It comes as strikes have escalated on both sides, leaving an interim deal to end the war in tatters.

“From this point forward, any time the Islamic Republic of Iran shoots at a ship in the Strait of Hormuz, whether it be by Missile, Rocket, Drone, or any other device or weapon, the United States will bomb and destroy ONE BRIDGE OR POWER PLANT,” Trump wrote on social media.

Meantime the United States on Wednesday carried out another wave of strikes on Iran, where air defenses opened fire over the capital, Tehran. Iran launched a missile attack on a Jordanian city on Israel’s doorstep, and alerts were issued in Bahrain and Saudi Arabia.

The 11th night of American airstrikes on Iran came as diplomatic efforts have shown little public sign of progress. Officials on both sides have dug in on their dispute over the Strait of Hormuz, a crucial waterway for global energy that remains largely closed because of Iranian attacks. Related News Trump "close" to decision on "massive attack" on Iran, says US media outlet Credible elections hinge on media, INEC, informed voters, stakeholders say Groundbreaking Retina Chip Designed to Restore Sight to Go on Sale in Europe