The American newspaper “The Hill” said that a group of senators sent a letter to US President Joe Biden, asking him about the legal authorities he relied on to launch military attacks on Yemen.

According to a report published by the newspaper on Wednesday evening, the senators wrote in their letter that “there is no current authorization from Congress to carry out offensive American military action against the Houthis.”

They added, “The Constitution requires that the United States not engage in military action without a positive vote in Congress, unless there is a need to repel a surprise attack.”

The newspaper reported that among the signatories of the letter were Senators Tim Kaine (Democrat of Virginia), Todd Young (Republican of Indiana), Chris Murphy (Democrat of Connecticut) and Mike Lee (Republican of Utah).

During the past few days, many members of Congress criticized the strikes launched by the United States of America and Britain on Yemen on January 12, and said that they were “unconstitutional” because the president did not return to Congress before making the decision to attack.