EgyptAir airliner ‘apparently’ brought down by terror attack – Russia’s security chief

"Unfortunately, today there was another incident with an Egyptian Airlines plane. Apparently, it is a terrorist attack, which killed 66 people f-rom 12 countries,” Bortnikov was cited as saying by TASS.

The FSB chief urged "all concerned parties, including our partners in Europe, to undertake joint measures to identify the persons involved in this heinous act."

An EgyptAir flight en route f-rom Paris to Cairo has gone missing on Thursday with 56 passengers and 10 crewmembers on board.

While a search and rescue operation is under way, authorities and experts say no scenario can be ruled out, including terrorism.

READ MORE: EgyptAir Flight 804 disappears en route f-rom Paris to Cairo with 66 on board

EgyptAir has published information about the nationalities of the 56 passengers. It lists 30 Egyptians, 15 French, two Iraqis and one citizen each f-rom the UK, Belgium, Kuwait, Saudi Arabia, Sudan, Chad, Portugal, Algeria and Canada.

An explosion onboard caused the crash of the Metrojet (Kogalymavia) A321 plane over Egypt’s Sinai Peninsula on October 31, 2015.

All 224 people on board the plane were killed, making it the deadliest air accident in modern Russian aviation history.

The incident let to cancellation of all Russian flights to Egypt over concerns of safety in the country’s airports.