A Robinson R44 helicopter with two people onboard goes missing on the border of the Khanty-Mansi autonomous district and the Tyumen region, the press service of the Russian emergencies ministry told Itar-Tass on Thursday. “At 18:50 Moscow time on March 4, we received the information that the R44 helicopter owned by AMK Vigas company had not arrived to the Samotlor oil field in the Nizhnevartovsk district,” the source said. On March 2, the helicopter left the Ust-Yagus field 300 kilometres southwest of Nizhnevartovsk, Western Siberia, for the Samotlor field located 40 kilometres south of the city. On Wednesday, three Mi-8 helicopters began search operations. However, the helicopter has not been found yet.