French police have arrested several suspects in connection with a series of violent kidnappings aimed at cryptocurrency executives and their families. The latest arrests, made on Tuesday, are part of a broader crackdown on what authorities describe as a highly organised extortion ring.

The group is believed to be behind the 1 May abduction of a crypto entrepreneur's father, who was kidnapped in broad daylight in Paris by men disguised as delivery workers. The kidnappers reportedly cut off a finger to demand cryptocurrency before police rescued the victim days later.

Investigators suspect Badiss Mohamed Amide Bajjou, a 24-year-old dual French-Moroccan national, of orchestrating the attacks. Moroccan police arrested him in Tangier last week, seizing weapons, electronics, and illicit funds.

He is also linked to the January kidnapping of Ledger co-founder David Balland, with French authorities now seeking his extradition.

By the end of May, prosecutors had charged 25 people, mostly under 24, who were recruited online and promised financial rewards. Many were used as operatives in kidnapping attempts, including a failed effort to abduct the family of Paymium CEO Pierre Noizat.