A senior commander in the Revolutionary Guards, Abdollah Araghi, said on Thursday that Iran’s armed forces would “impose harsher revenge on the enemy in the near future,” according to a translated report from Iran’s Tasnim News Agency.

President Hassan Rouhani of Iran spoke with Prime Minister Boris Johnson of Britain on Thursday morning and warned of further action, according to the president’s office.

“If the U.S. makes another mistake, it will receive a very dangerous response,” Mr. Rouhani said, according to the statement.

The deputy general of the Revolutionary Guards, Ali Fadavi, also pledged vengeance, according to a separate report from the English-language version of Tasnim.