A Russian military plane carrying 11 crew members has crashed into the sea in the far-east of the country.
The Tu-142 plane disappeared from radar over the Tatar Strait, near the island of Sakhalin, military officials say.
Search operations continue although an emergency ministry official has said all the missing are presumed dead.
Some reports suggest the plane's fuselage has already been found. Just last week a Russian cargo plane crashed in eastern Yakutia, killing 11 people.
According to one report, an object which could be the missing plane's fuselage has been found in 44 metres (144 ft) of water.
All flights of Russia's Pacific Fleet have been suspended pending the results of an investigation into the accident, reports say.