Civil Guard officers seize computers and cash from Spanish gym linked to the Kinahans
Civil Guard officers forced entry to the famous MGM Gym in Puerto Banus near Marbella as scores of gardaí began searches at several locations in Dublin.
Detectives used bolt cutters to force their way into the gym - suspected to be closely linked to the Kinahan family, which is involved in a deadly feud with the rival Hutch family - just after 7am local time before taking away cash and computers.
Investigators were spotted loading several boxes into unmarked vans.
There was no sign of Daniel Kinahan, who is reported to have taken over control of the family's business empire from his father Christy.
Former Irish, British and European Middleweight Champion Matthew Macklin, who is not involved in crime, founded the MGM Gym. A source said: "The officers said they were looking for two men who used to use the gym ... They took everything, computers, paperwork, the lot."
Christy Kinahan and his two sons Daniel and Christopher were among more than 20 suspects arrested during the Costa del Sol dawn raids in May 2010.
Allegations of drugs and arms trafficking were dropped more than two years ago.