Russian aviation officials view the wreckage of Russian MetroJet Airbus A321 at the site of the crash in Sinai, Egypt. The A321 plane of Metrojet en route from Sharm-el-Sheikh, to St. Petersburg crashed in the Sinai, Egypt on 31 October 2015, killing all 224 people on board.
(MAXIM GRIGORIEV / EPA)
Russian Emergency Situations Minister Vladimir Puchkov, left, talks with Russian Transport Minister Maxim Sokolov, fifth right, as they inspect the wreckage of a passenger jet bound for St. Petersburg in Russia that crashed in Hassana, Egypt.
(Maxim Grigoriev / Associated Press)
A piece of wreckage of Russian MetroJet Airbus A321 at the site of the crash in Sinai, Egypt.
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A piece of an engine of Russian MetroJet Airbus A321 at the site of the crash in Sinai, Egypt.
(MAXIM GRIGORIEV / EPA)
Egyptian servicemen approach a piece of wreckage of Russian MetroJet Airbus A321 at the site of the crash in Sinai, Egypt.
(MAXIM GRIGORIEV / EPA)
Russian Ministry for Emergency Situations paramedics stand next to their ambulance cars at a city morgue in St.Petersburg, Russia.
(Dmitry Lovetsky / Associated Press)
People light candles at a memorial for the plane crash victims at Palace Square in St. Petersburg, Russia, on Sunday.
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A Ukrainian woman lights a candle in front of the Russian Embassy in Kiev, Ukraine, to pay tribute to victims of a Russian plane crash in Egypt on Oct. 31, 2015.
(Efrem Lukatsky / Associated Press)
A Ukrainian woman lingers in front of the Russian Embassy in Kiev where flowers have been placed in memory of the victims of a Russian plane crash in Egypt on Oct. 31, 2015.
(Efrem Lukatsky / Associated Press)
Relatives react at Pulkovo international airport in St. Petersburg after a Russian plane crashed in the Sinai, killing all aboard.
(Olga Maltseva / AFP/Getty Images)
People gather at the information desk at Pulkovo airport outside St. Petersburg after a Russian plane crashed in the Sinai Peninsula.
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The Russian airline Kogalymavia’s Airbus A321 with a tail number of EI-ETJ at Moscow’s Domodedovo international airport last week. The plane crashed Saturday in Egypt’s Sinai peninsula.
(Tatiana Belyakova / Associated Press)