U.S. and Canadian authorities announced new arrests, indictments and sanctions on Wednesday in their continuing efforts to locate, arrest and prosecute Canadian ex-Olympic snowboarder turned fugitive Ryan Wedding, who allegedly leads a transnational crime network.

Appearing at a joint news conference in Washington, D.C., with Canadian authorities, U.S. Attorney General Pam Bondi said authorities have worked closely with international partners. Ms. Bondi unsealed a new indictment outlining new charges, including murder and witness tampering, against more of Mr. Wedding’s alleged associates and increased the reward for information leading to Mr. Wedding’s arrest from $10-million to $15-million.

“We arrested 12 people yesterday in an international takedown,” U.S. central California attorney Bill Essayli told reporters. He said one of the arrested individuals included a Canadian lawyer acting for Mr. Wedding.

The total number of those arrested and sought in connection with the Wedding network is now more than 30, officials said.