A series of unclaimed airstrikes have hit Iran after the U.S. said it ended its attacks, raising questions about who targeted the Islamic Republic.

The U.S. military said Wednesday that it was carrying out another round of strikes on Iran after the Islamic Republic attacked ships in Strait of Hormuz a day earlier.

The United States launched new airstrikes against Iran early Thursday, and Tehran responded by targeting Bahrain, Kuwait and Qatar in crossfire that again threatened an interim…