Police in Brazil have arrested the head of the European Olympic Committees, Irishman Patrick Hickey, in Rio over illegal Olympic ticket sales.
Mr Hickey, 71, is suspected of being involved in a scheme to sell tickets for higher than their face value.
He was taken to hospital after his arrest as a precaution, where he will probably spend the night, police said.
When officers went to his hotel room on Wednesday morning they found his wife there with his Olympic credentials.
Mrs Hickey said her husband had left for Ireland at the weekend, police told a news conference.
With the help of the hotel they began a search and found Mr Hickey in the room next door, they said.
While police said they had reason to believe he was trying to escape, a video apparently of the arrest on the ESPN Brazil sports news website shows Mr Hickey answering the door naked to officers.