Dozens of alleged sex traffickers have been arrested in New York before this weekend's Super Bowl.
Politicians claimed that visiting football fans could order under-age prostitutes "like takeaway pizzas".
Police and FBI agents detained more than 200 people accused of crimes related to trafficking women in advance of Sunday's match, the biggest event in the US sporting calendar, said officers.
Thousands of prostitutes are expected to be shipped into the greater New York City area to cater to demand from spectators arriving to watch the Seattle Seahawks take on the Denver Broncos.
"In the last fortnight we arrested more than 200 people for prostitution-related offences, including sex traffickers, prostitutes and 'johns' who seek such services," said Detective James Duffy.