Russian transport regulator Rostransnadzor has told Kogalymavia airline to stop flights on Airbus A321 aircraft until the causes of a crash involving a Kogalymavia Airbus A321 in Egypt on Saturday are known, Interfax reported on Sunday. But RIA news agency cited a Kogalymavia representative as saying that the airline had not received the order from Rostransnadzor. http://english.ahram.org.eg/News/162384.aspx