Russian court increases jail sentence for Gulag historian

Yury Dmitriyev's term increased to 15 years on charges supporters say are punishment for exposing Soviet-era crimes

A Russian court has increased a jail sentence for the Gulag historian Yury Dmitriyev to a total of 15 years on charges his supporters say are punishment for his work exposing Stalin-era crimes.

Supporters say Dmitriyev, 65, is being targeted because of his efforts to expose the horrors of the Soviet era under Joseph Stalin.