A Moscow court on Saturday remanded in custody three more suspected members of the ransomware crime group REvil for illegal trafficking of funds, a day after Russia claimed it had dismantled the group at the request of the United States.
The court identified the three men as Mikhail Golovachuk, Ruslan Khansvyarov and Dmitry Korotayev.
In a rare apparent demonstration of U.S.-Russian collaboration at a time of high tensions between the two over Ukraine, Russian authorities detained and charged the REVil group's members this week.
A police and FSB domestic intelligence operation searched 25 addresses, detaining 14 people, the FSB said Friday, listing assets it had seized, including $600,000 of computer equipment and 20 luxury cars.
The United States welcomed the arrests.
The United States said in November it was offering a reward of up to $10 million for information leading to the identification or location of anyone holding a key position in the REvil group.
A source familiar with the case told Interfax the group's members with Russian citizenship would not be handed over to the United States.