U.K. social media influencer brothers Andrew and Tristan Tate were arrested by federal authorities Saturday in Miami, according to the U.S. Marshals Service.

The charges against the duel U.S. and British citizens have yet to be announced. A Marshals Service spokesperson told the Associated Press the warrant is sealed. 

The brothers, who moved to Romania in 2016, were arrested on an extradition request from the U.K., a person familiar with the matter, told the wire service, on the condition of anonymity.

The brothers, who have millions of followers on social media, have been wanted in the United Kingdom, where they face rape and human trafficking charges, the wire service also reports.

The former professional kick-boxers, who hype misogyny and hyper-masculinity, were arrested there in 2022, accused of participating in schemes to lure women for sexual exploitation, allegations they deny. The case didn’t proceed because of legal and procedural irregularities, the newswire service also reports.