Among the details was information suggesting Iran knew where Trump was staying in Ankara, reportedly including the floor of the building. The intelligence was considered serious enough for US security officials to alter the president's departure arrangements. The security operation came amid heightened tensions between Washington and Tehran. Secretary of State Marco Rubio was among the senior officials reportedly travelling on the legacy plane. Trump Reappeared in BritainThe security operation reportedly continued after the two aircraft reached RAF Mildenhall in England.