President Vladimir Putin ordered the suspension of all Russian passenger flights to Egypt on Friday until the cause of a deadly plane crash at the weekend was established.
Putin's decision was a response to the unexplained crash of an Airbus A321 operated by a Russian carrier on Saturday over Egypt's Sinai Peninsula. All 224 people on board were killed.
The move, which follows decisions by Britain and Ireland to suspend flights to and from Sharm al-Sheikh, the Egyptian resort where the downed Russian airliner originated, is the first sign that Moscow is attaching credibility to the theory that Islamist militants somehow planted a bomb on the aircraft.
Putin acted after Alexander Bortnikov, the head of Russia's FSB security service, recommended that Russia suspend all passenger flights to Egypt until it knew exactly what caused the crash.