President Donald Trump vowed Monday to hold Iran responsible after fighting between the United States and Houthi militants escalated following U.S. airstrikes over the weekend.

US President Donald Trump has warned Iran that it will face "dire" consequences if Yemen's Houthis continue to attack international shipping lanes. He said the Iranian leadership would from now on be viewed as having pulled the trigger for "every shot fired by the Houthis", which have long been backed by Tehran.

U.S. President Donald Trump has explicitly linked the actions of Yemen’s Houthi rebels to the group’s main benefactor, Iran.