Orthodox believers venerate St Nicholas' relics at Cathedral of Christ the Saviour in Moscow [Getty Images]

MOSCOW, RUSSIA - MAY 22, 2017: Orthodox believers venerate fragments of St Nicholas' relics at the Cathedral of Christ the Saviour. Valery Sharifulin/TASS (Photo by Valery Sharifulin\TASS via Getty Images)

TASS Valery Sharifulin