A Russian plane loaded with precious metals lost its glittering cargo on take-off Thursday, scattering the runway with gold and silver.

The Antonov plane was taking off after refuelling in an airport at Yakutsk in Siberia when its cargo door flew open - dropping nearly 200 bars from the Kupol gold mine in the remote Chukotka region, investigators said.

The cargo of bars of concentrated ore used to transport the precious metals weighed 9.3 tonnes.

"As it gathered height, the cargo door became damaged due to the shifting of cargo" and "part of the cargo was scattered on the runway," Russia's Investigative Committee said in a statement on Telegram.

The plane was forced to land back at the airport, and police immediately sealed off the area to prevent locals from rushing to the scene of the rare windfall, Yakutmedia local news site reported.

It posted a video of what looked like large white-ish bricks lying on the runway.