Two players from Uruguay's rugby team have been questioned by police after allegedly assaulting staff and damaging property at a nightclub in the Japanese town of Kumamoto.
The players visited the Bacon Egg nightclub on Sunday after losing 35-13 to Wales in their final Rugby World Cup Pool D match.
The nightclub posted CCTV footage of the alleged assault on Twitter, saying staff were "disappointed" by the players' behaviour.
Police said they were called to the Bacon Egg nightclub in the early hours of Monday and took statements from both players. The police said no arrests had been made.
World Rugby said it was aware of the allegations and had issued an apology.
"The alleged matter is disappointing and clearly does not align with the family spirit of the tournament, characterised by the special warmth of welcome between the fans, teams and Japanese public," the governing body said in a statement.
"An apology has been made on behalf of the tournament and it would be inappropriate to further comment while the facts are being established."