Fearful that the kidnappers might sever another finger from their hostage or worse, the French police commander ordered his officers — with a radioed “Go” command — to raid the house where he suspected that the father of a wealthy cryptocurrency entrepreneur was being held.

Five suspects were arrested after severing a victim's finger in the latest "wrench attack" involving attempts at crypto extortion.

The father of a crypto entrepreneur was rescued by French police on Saturday after being kidnapped late last week, according to Paris prosecutors, marking the latest in a string of high-profile crypto-related attacks in recent years.