An explosion Wednesday at a hydropower plant in central Russia killed two people, including a firefighter, and injured 10 workers, wire services reported.
A regional emergency official said the blast occurred at the Lower Kama hydropower plant in the Tatarstan region, some 1,000 kilometers (600 miles) east of Moscow.
A compressor exploded in the turbine room, but the cause of the accident was not immediately clear, investigating agencies said in a statement.
Smoke appeared in the turbine room about 10 minutes before the explosion, state news agencies reported, citing the Energy Ministry.
The turbine shop director was killed, as was a firefighter who fell from a height during the rescue operation, investigators said.
The incident did not affect the normal operation of the plant, local media reported.
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