Earlier in the morning the Russian Federal Air Transport Agency (Rosaviatsiya) possesses information indicating that an Airbus A321 plane en route from Egypt to St. Petersburg disappeared from radar screens.
The plane was carrying 224 people, including 217 passengers and 7 crewmembers.
All passengers on board a Kolavia aircraft are Russian citizens, the Govorit Moskva radio station reported with reference to a source from the Russian embassy to Egypt.
The Irish-owned aircraft was leased by a Russian airline. It crashed in the Hassana area, south of Arish.
According to Flight Radar 24, the jet was plunging at 5,760 feet per minute at 30,000 feet when it lost contact with air traffic controllers.
Reports suggest the pilot had warned air traffic controllers of a technical issue on board the aircraft.
Weather conditions were said to be poor at the time of the crash.
Egyptian security officials have found the wreckage in a remote mountainous region which has large numbers of ISIS-affiliated terrorists, although they are not thought to possess any weapons which could hit a passenger jet at its 35,000 feet cruising altitude, Daily Mail Reports according to Egyptian security sourcees.
Egyptian security officials confirmed that there are unlikely to be any survivors following the accident.
The plane went down in a mountainous area in central Sinai and poor weather conditions have made it difficult for rescue crews to get to the scene, the officer said. Survivors and bodies of those on board will be flown to Cairo, the security source said.
According to Russian news agencies, the aircraft was an Airbus A-321 operated by Kogalymavia Aircraft.
Egyptian emergency authorities have sent 45 ambulances to the scene to help with the rescue efforts.
There were no indications the aircraft was shot down, according to Egyptian security sources.
The aircraft went down in an area where pilots are warned against flying at less than 24,000 feet because of the danger of 'dedicated anti-aircraft weapons'.