Sharm el-Sheikh, Egypt - The remains of Russian tourists killed in a passenger jet crash in Egypt's Sinai Peninsula are expected to start arriving back in St. Petersburg on Sunday as questions swirl over what caused the disaster.
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CNN: Questions swirl over Russian plane crash in Sinai that killed all 224 aboard
A relative reacts at Pulkovo international airport outside Saint Petersburg after a Russian plane with 224 people on board crashed in a mountainous part of Egypt's Sinai Peninsula on October 31, 2015.
