The Civil Guard said the Lyons' organisation in Spain has been taken apart, with 14 arrests in four countries and 20 others under investigation.
Nick Rockett, last year's Grand National winner, withdraws from the 2026 race at Aintree on Saturday.
Red Bull's Gianpiero Lambiase, Max Verstappen's race engineer, agrees to join McLaren from 2028.
Rescue efforts remain under way after the incident off the coast of northern France, local media is reporting.
Christopher Sullivan pays tribute to his son, filmmaking student Finbar Sullivan, who was killed.