Russian minister: can't be sure about causes of plane crash in Egypt

MOSCOW (Reuters) - Russia's Transport Minister Maxim Sokolov said on Sunday that one could not be sure about the causes of the crash of a Russian airplane in Egypt on Saturday, Interfax news agency reported. "One can't accurately answer the question about the causes of the crash, since there is little information accumulated," Sokolov said. (Reporting by Alexander Winning; Editing by Alison Williams)