By Steve Holland
WASHINGTON, Aug 12 (Reuters) - A threat that Air Force One could be targeted by a shoulder-fired missile prompted the Secret Service to secretly move President Donald Trump onto an unmarked government jet during a trip to Turkey last month, a person briefed on the matter said on Wednesday.
The threat emerged on the final day of Trump's visit to Ankara for the NATO summit amid heightened tensions with Iran, the source said. The Secret Service deemed the threat to be credible and imminent,
prompting an extraordinary operation to conceal the U.S. president's movements.
The source declined to say where the intelligence came from.
Trump and a small group of aides used a catering truck to surreptitiously switch from the big blue-and-white presidential aircraft to a smaller, nondescript C-32A jet for the flight out of Turkey on July 8, while Air Force One departed separately carrying senior administration officials, White House staff and the traveling press corps, according to the source.
Trump told reporters on Tuesday that he made the switch at the direction of the Secret Service, which is charged with presidential security. He flew from Ankara to a refueling stop in Britain without incident.
"I think actually the plane that I flew on was at greater risk," Trump told reporters, without providing evidence. "I think it was at greater risk because that would be the plane I think that they would be more likely to go for."
The Washington Post first reported details of the operation this week, more than a month after it was carried out. The New York Times reported that U.S. officials were alarmed to discover that Iranians knew where Trump was staying in Ankara, including the exact floor of his hotel.
On board the Air Force One jet now seen as a decoy were U.S. Secretary of State Marco Rubio, who the source said was briefed on the maneuver; Treasury Secretary Scott Bessent; White House communications director Steven Cheung; and a number of other aides plus the typical 13-person press pool that included a Reuters correspondent and photographer.
White House deputy chief of staff Dan Scavino, executive assistant Natalie Harp and director of Oval Office operations Walt Nauta made the move in the catering truck with Trump, the source said.
Some media commentators and lawmakers have questioned whether the operation left Trump's aides and journalists traveling with him at risk aboard the plane presumed to be carrying the president.
The source said it was determined that it was in Trump's best interests to keep the ruse secret as hostilities escalated with Iran, which borders Turkey.
Turkish officials did not immediately comment on the threat.
(Reporting By Steve Holland; additional reporting by Humeyra Pamuk; editing by Colleen Jenkins and Deepa Babington)
