A Russian plane has disappeared from radar just minutes after take-off from the Black Sea resort of Sochi, Russian media say.

They are quoting a source at the emergency ministry as saying the missing aircraft is a Tu-154.

Between 70 and 100 people are reported to be on board the plane, reports the BBC.

Unconfirmed reports say the aircraft belongs to the defence ministry, flying to Syria’s Latakia province. Russian officials have so far made no comment.