Several people have been killed in explosions at two Russian military airfields, BBC reported.
A fuel tanker exploded killing three and injuring six in an airfield near the city Ryazan, south-east of Moscow, Russian state media is reporting.
Another two people are reported to have been hurt in an explosion at an airfield in the Saratov region.
It is not known what caused the blasts. Both areas are hundreds of kilometres from the Ukrainian border.
Long-range Russian strategic bombers are believed to be based at the Engels airbase in the Saratov region.
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