Six football officials have been arrested over corruption charges at governing body Fifa, at a hotel in Zurich, Switzerland.
The suspects, who are said to include a Fifa vice-president, have been detained pending extradition to the US.
It involves alleged bribes worth about $100m (£65m; €92m) over two decades.
Fifa members are gathering in Zurich for their annual meeting on Friday, where incumbent President Sepp Blatter is seeking a fifth term.
However, Mr Blatter is not understood to be one of those arrested.
The New York Times says plain-clothed police officers took the room keys from the reception of Baur au Lac hotel, where the officials were staying, and headed to their rooms. It said the operation was carried out peacefully.
Jeffrey Webb - head of the confederation for North and Central America and the Caribbean - has been named as one of the officials arrested, says the BBC's Richard Conway, who is at the Zurich hotel.
Other Fifa officials seen by the BBC escorted by police from the hotel include:
Costa Rica's Eduardo Li, who was due to join Fifa's executive committee on Friday
Uruguay's Eugenio Figueredo, president of South American football governing body Conmebol
Brazil's Jose Maria Marin, a member of Fifa's club committee. Police were seen carrying his suitcase and some of his possessions in plastic bags
And so it finally begins