Shells are exploding and tens of thousands of people have been evacuated from their homes as fire sweeps through an ammunition depot in central Russia.
Russian news reports said at least 28 people were injured in the blaze and explosions that started late on Thursday at the arsenal in the republic of Udmurtia, some 550 miles east of Moscow.
Nearly 30,000 people were reported to have been evacuated from the surrounding area.
Explosions broke windows in buildings as far as six miles from the arsenal.
The cause of the blaze was not immediately determined.
Deputy Defence Minister Gen Dmitry Bulgakov told the ITAR-Tass news agency that the arsenal stores a small number of artillery rockets, but they are not in danger of exploding.