MacDill Air Force Base locked down for three hours Wednesday after second security incident in recent days | 18 March 2026 | MacDill Air Force Base was locked down for about three hours Wednesday after a second security incident at the Florida home of U.S. Central Command in recent days, installation officials said. Base officials lifted the shelter-in-place order about 2 p.m., local time after a threat to MacDill had been “cleared,” according to a social media post. MacDill, outside Tampa, Fla., houses CENTCOM, which is overseeing combat operations against Iran in the Middle East. It is also home to U.S. Special Operations Command and the Air Force’s 6th Air Refueling Wing. The threat Wednesday came just two days after a suspicious package was found at MacDill’s visitor center, which led to the closure of the center and the base’s Dale Mabry gate for about six hours on Monday.