A fire at a former Russian electronics research institute near Moscow has killed at least eight people, state news agency TASS reports.
Two people jumped to their death from the top floors of the eight-storey building - in the town of Fryazino - which was engulfed by flames.
It is not yet clear what caused the fire to start.
Regional governor Andrey Vorobyov said a 34-year-old man was in serious condition in hospital, while two firefighters were also being treated for injuries from the fire.
More than 100 firefighters are at the scene. Local emergency services said the man was the only person rescued from the blaze.
The building creates components for fighter jets, nuclear launch munitions, air defences and guided munitions.
