Local media said the aircraft disappeared shortly after departing from Sochi.
The plane was carrying 29 people, including military personnel, crew members and civilians.
Search teams have been looking for the downed plane since it crashed with 66 people on board.
The plane mysteriously went down last month, carrying 66 people on board.
The first clues as to what happened on board Flight MS804.
The Malaysia Airlines jet vanished more than two years ago.
With every passing day, it becomes more likely that the ships scouring the southern Indian Ocean for signs of missing Malaysia Airlines Flight 370 will come up empty handed.
The flaperon piece was found off the coast of the Indian Ocean in July.
PARIS (AP) — French investigators have formally identified a washed-up piece of airplane debris found in July on a remote
JAYAPURA, Indonesia (AP) — An Indonesian passenger plane that went missing two days ago was destroyed when it slammed into