At least two people have died in a major fire that broke out at a building linked to a Western-sanctioned scientific research institute in the Moscow region, local authorities said Monday.

Moscow region Governor Andrei Vorobyov said the fire engulfed the Platan research institute building in the town of Fryazino.

Platan, a producer of defense electronics, has been under war-related U.S. sanctions since June 2022 for producing and distributing “pigments and dyestuff” used by the military.

“Unfortunately, two people were killed in the fire in Fryazino,” Vorobyov wrote on Telegram.