After two subsequent days of raids, authorities find evidence of tax fraud.

Spain’s Guardia Civil has taken mallets and pick axes to the walls and floors of famed Ibiza club Amnesia following an initial raid on July 5 which saw the arrest of owner Martin Ferrer and three other men, reports Diario de Ibiza.

Using the tools, police found money counting machines and hiding compartments throughout the club, discovering over €2 million stashed on the premises.

Police occupied the premises for more than 17 hours on Tuesday but finally allowed the club to open to the public.

The raids were reportedly launched in response to “crimes against the Treasury.” Searches have also taken place in Ferrer’s home, the homes of other suspects and related people, safe deposit boxes in banks across the island and premises on the mainland in Barcelona.

Crime and drug organizations, including trained dogs, from Palma, Majorca, have been involved in the raids, as well as Tax Agency Ibiza.

Ferrer and the others who were arrested were expected to stand before a judge this morning (Wednesday, July 6), but have not yet.