MOSCOW, October 2. /TASS/. A TASS source in Russia’s Federal Penitentiary Service has refuted reports about an alleged prisoner riot in a prison train car near Vladikavkaz.

"Emerging reports are not true. There was no riot. One of the convicts attacked an officer in a train car and killed him," the source told TASS, adding that three more officers of the Federal Penitentiary Service were wounded.

No further details were given.

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