Iran threatens to halt Mideast energy exports after US reimposes a blockade and intensifies strikes

The U.S. reimposed a naval blockade on Iran and intensified its airstrike campaign Wednesday in retaliation for Tehran's attacks on ships trying to pass through the Strait of Hormuz. The American strikes hit an Iranian army barracks, killed at least seven troops and wounded more than 260 people across the country, Iranian officials said.

Days of back-and-forth strikes by the U.S. and Iran across the Middle East — and renewed threats to the waterway crucial to global energy supplies — have shredded the interim deal to end the conflict and the region could tip back into all-out war.