A U.S. official said the latest satellite imagery had captured two Russian Mi-24 and two Mi-17 helicopters on the tarmac of Bassel al-Assad International Airport, in Latakia, Syria.
By Igor Dvurekov (http://russianplanes.net/id53229) [GFDL 1.2, GFDL 1.2 or CC BY-SA 3.0], via Wikimedia Commons
The same person said there are no signs that the rotorcraft had flown but they are expected to do so once maintenance crews prepare them for flight.