The United States military said late Monday it was carrying out its 10th consecutive night of strikes on Iran in a push to reopen the Strait of Hormuz. The renewed bombings followed the death of another American service member, and came after Iran launched attacks on American allies Kuwait, Jordan and Bahrain, home of the U.S. Navy’s 5th Fleet.

U.S. Central Command said on social media that the latest strikes “are designed to further degrade Iranian military capabilities used to attack commercial shipping” in the strait.

Even as the U.S. and Iran inch closer to all-out war again, glimmers of hope appeared on the diplomatic front, as Iran’s interior minister traveled to Pakistan, a key mediator in the conflict, for talks.

The interim deal signed last month that was meant to end the fighting has crumbled. Shipping through the Strait of Hormuz — a vital supply route for world energy supplies — has largely stalled. And as fighting intensifies, both sides have targeted civilian infrastructure relied on by millions of people.

A new potential threat to world energy markets emerged Monday after Iran-backed rebels in Yemen said they planned to prevent Saudi Arabia from shipping in the Red Sea, an alternate route for oil exports during the war.