The director of a factory supplying drones to the Russian military was badly wounded and his driver was killed when the car they were in exploded, news reports said on Wednesday.
The state Tass and RIA Novosti agencies said that Vladimir Tkachuk was hospitalised in grave condition following the explosion late Tuesday in Bolshoy Istok just outside Yekaterinburg, 1,400km (about 870 miles) east of Moscow.
There was no immediate comment from the authorities.
Tkachuk headed the Uraldronzavod factory...