A plane operated by the Sibir airlines is expected to leave Novosibirsk for Sochi on Saturday. The State Civil Aviation Service (SCAS) told RIA Novosti that a group of Sibir experts and relatives of the victims of the Tu-154 plane crash would be on board. The experts are to decide on ways of delivering the bodies of the victims to Novosibirsk. The majority of the Russian citizens among the passengers of the plane and the crew were residents of Novosibirsk. SCAS, which receives all information concerning the investigation of the crash, said that weather conditions at the crash site were getting worse and make search for bodies and pieces of the crashed plane increasingly difficult. SCAS also said that due to technical reasons the arrival of a rescue team from Israel had been postponed until Saturday night or Sunday morning. The Israeli Hercules military transport plane is to deliver divers and experts in plane crash investigations, as well as police and body identification experts. According to SCAS, relatives of the victims from Israel and the first group of relatives of Russians from Novosibirsk have been accommodated at the Moskva Hotel. They receive psychological and medical assistance.