People attend a religious service commemorating victims of a Russian airliner which crashed in Egypt, at St. Isaac's Cathedral in St. Petersburg, Nov. 8, 2015. An Airbus A321, operated by Russian airline Kogalymavia under the brand name Metrojet, crashed on Oct. 31 shortly after taking off from the Red Sea resort of Sharm al-Sheikh on its way to St. Petersburg, killing all 224 people on board.
