The U.S. military said Sunday that it launched new airstrikes against Iran to “swiftly punish” the country’s Revolutionary Guard for an attack in Jordan that killed two American service members, left one missing and four requiring hospitalization.

The US launched another round of air strikes against Iran on Saturday night, targeting its coastal surveillance and air defence facilities, US military officials said.

US Central Command said in a social media post the strikes were aimed at degrading Iran’s ability to threaten commercial shipping and “swiftly punish Islamic Revolutionary Guard Corps forces who launc...