the blockade back. 

Iran responded with attacks targeting Bahrain, Jordan and two tankers associated with the United Arab Emirates traveling through the strait, setting both ships ablaze for a time. The Emirati Defense Ministry said the attack on the tankers Mombasa and Al Bahiyah killed one mariner and wounded eight others. The Emirates threatened to retaliate.

Iran's paramilitary Revolutionary Guard claimed the attack on the tankers, saying the vessels  ignored repeated warnings.  Iran has targeted ships that use a route through the strait that passes near Oman outside of its territorial waters.

Bahrain also came under renewed attack early Tuesday morning as Iran retaliated over the latest round of U.S. airstrikes. Bahrain, home to the U.S. Navy's 5th Fleet, sounded its missile alert sirens three times, urging people to seek shelter.

Jordan's military separately said it intercepted four missiles from Iran. Jordan hosts U.S. forces and has come under attack by Tehran in recent days.

Interim deal is in peril

Exchanges of fire in recent days had already cast doubt on the interim peace deal - now almost halfway through the 60-day period in which negotiators were supposed to agree to a final accord, which also was meant to address Iran's disputed nuclear program and other issues.

But Trump's vow to impose a blockade further imperils it. Washington lifted a blockade it imposed in mid-April as part of the deal. The U.S. military said it will resume it at midnight in Dubai.

 We are reinstating the THE IRANIAN BLOCKADE,  Trump said on social media.  All other countries will have fair and open use of the Strait. 

But the president said the U.S. would impose a fee for protecting other ships: 20% of the value of cargo to help cover  any and all costs necessary to do the job of providing safety and security. 

That's a change to longstanding U.S. policy. The U.S. Navy has fought for freedom of navigation on the seas since the Barbary Wars in the early 19th century and the War of 1812. It's also a departure from recent U.S. promises that the strait would remain open to all without tolls - recently offered by U.S. Secretary of State Marco Rubio on a trip to the region.

Under the interim deal, Iran agreed that passage through the strait would remain free of charge for 60 days - but the agreement left open what would happen after. Iran asserts it has the right to manage traffic through the strait and potentially charge fees. The U.S. has disputed that.

Any attempt by the U.S. or Iran to charge fees would violate global norms on freedom of navigation and raise tensions, likely causing further economic disruption far beyond the region.

The price of benchmark Brent crude oil rose to a one-month high of over $86 in trading Tuesday, still well below the nearly $120 reached at the height of the war but threatening to make costs everywhere higher.

Negotiations between Israel and Lebanon to resume

Meanwhile Tuesday, Lebanese and Israeli delegations were set to meet in Rome to continue U.S.-mediated negotiations. Last month, Lebanon and Israel announced a  framework agreement  outlining the withdrawal of Israeli forces from southern Lebanon in exchange for the disarmament of the Iran-backed Hezbollah militant group. On the ground, however, the agreement has stalled.

Before the fighting around the strait intensified, Israel's war against Hezbollah in Lebanon repeatedly threatened to derail the interim deal in the Iran war. A truce now exists in Lebanon, but it remains unclear whether it will hold if the U.S. and Iran return to full-scale war.