A member of the Japanese yakuza criminal underworld pleaded guilty to handling nuclear material sourced from Myanmar and seeking to sell it to fund an illicit arms deal, U.S. authorities said Wednesday.

Yakuza leader Takeshi Ebisawa and co-defendant Somphop Singhasiri had previously been charged in April 2022 with drug trafficking and firearms offenses, and both were remanded.

He was then additionally charged in February 2024 with conspiring to sell weapons-grade nuclear material and lethal narcotics from Myanmar, and to purchase military weaponry on behalf of an armed insurgent group, prosecutors said.