The plane came down while en route to Russia from the Red Sea resort of Sharm el Sheikh. All 224 people on board, including 17 children, were killed.

At the time, a local group in Egypt affiliated to Isil claimed responsibility, although their claim was quickly dismissed by Russia and Egypt.

British and American authorities later revealed that a bomb was suspected of being responsible for the crash, with the Russian Federal Security Service announcing on 17 November that they were sure that it was a terrorist attack, caused by an improvised bomb containing the equivalent of up to 1 kilogram (2.2 lb) of TNT that detonated during the flight.

The Russians added that they had found explosive residue as evidence.

However this morning Egyptian investigators said their preliminary report had found no proof of terrorism, the BBC said.

Russia has insisted that it believes the crash was a terrorist act, and has vowed to “find and punish” the perpetrators.

EasyJet, Thomson Airways and Thomas Cook Airlines have all extended their bans on flying to Sharm el Sheikh following the suspected downing of the Russian charter.

EasyJet has now decided to cancel flights up until January 6. Customers already booked with the airline can arrange alternative flights or secure a refund.