The U.S. military said on Thursday a blast on Sunday near a UNESCO world heritage site in Yemen's capital city of Sanaa was caused by a Houthi missile and not an American airstrike.

The United States is preparing to offer Saudi Arabia an arms package worth over $100 billion, according to sources familiar with the issue. This proposed deal is expected to be announced during US President Donald Trump's upcoming visit to the kingdom.

The president's trip aims to “strengthen ties” with these countries, White House press secretary Karoline Leavitt said.