Videos captured possible missiles in the sky over Doha after Iran says it launched a retaliatory strike against the Al Udeid Air Base, which stations thousands of U.S. troops. Qatar confirmed the strike and said there were no casualties.

The Pentagon already had begun taking measures to strengthen its firepower in the Middle East and protect U.S. bases there.

Iran’s military claimed responsibility for a missile attack on Al Udeid Air Base in Qatar, marking a major escalation in the regional conflict. In a statement issued by the Secretariat of Iran’s Supreme National Security Council,