The aircraft was carrying £265m worth of platinum, gold and diamonds when the hatch flew open – sending the precious metals plummeting back to earth.
According to the TASS news agency, Russian authorities have recovered more than 170 gold bars weighing 20kg each.
The plane was travelling from Yakutsk Airport – a major diamond-producing region – to Krasnoyarsk.
However, the Nimbus Airlines AN-12 cargo aircraft made an emergency landing in Magan after it began haemorrhaging valuables.
Reports suggest some bars of gold were scattered up to 15 miles away from the airport.
More from World
US hits Russia with new sanctions over ‘election interference’
Arrest warrant out for Saudi princess after assault in Paris
Panama Papers firm to close after ‘cyberattack’
Russia travel advice: Britons warned not to ‘talk politics’ amid tensions
‘Please hurry, oh my God’: Florida school shooting victims plead for help in 911 calls
How platypus milk could solve the antibiotics crisis
Police have sealed off the runway, and say it is unclear if it was an accident or a deliberate attempt at a heist.
Technical engineers who worked on the plane prior to take-off are reportedly going to be questioned by police.