A plane with six people aboard has disappeared in Russia's Far East, authorities say, Euronews reports.
The Russian emergency ministry said the AN-26 aircraft went missing 38 kilometers from the city of Khabarovsk on Wednesday evening.
Officials have presumed that the plane disappeared over the Khekhtsir nature reserve while making a "technical" flight.
"According to preliminary data, there were 6 flight personnel on board," the ministry said in a statement.
More than 70 rescuers and a reconnaissance helicopter had deployed to the suspected crash site.
"Searches are complicated by the dark time of the day and unfavorable weather conditions," the ministry added.
The AN-26 is a medium-haul transport plane produced by Soviet manufacturer Antonov in the 1970s and 1980s and is used mainly to transport civilian cargo or soldiers and military equipment.