The World Curling Federation says it supports a decision to strip a Russian curler of his Olympic medal after he admitted to a doping violation at the Pyeongchang Games.

The curling federation said in a statement Thursday that the violation involving Russian curler Alexander Krushelnitsky has ''cast a shadow over our sport.''

The Court of Arbitration for Sport announced earlier Thursday that Krushelnitsky would be stripped of his medal after testing positive for the banned substance meldonium.

Krushelnitsky won a bronze medal in mixed doubles with his wife last week.

The curling federation said the fourth-place Norwegian team will now receive a bronze medal but gave no timeline for when that would happen. The Norwegians have said they want to receive their medal before the end of the games.