Spain is investigating a number of people suspected of using accounts in Liechtenstein to dodge taxes, Spanish authorities said on Wednesday.
Spain's tax office declined to comment on how many Spaniards were under investigation in the latest in a series of inquiries into accounts held in the tiny European state.
The Spaniards' names appear on bank accounts and deposits in Liechtenstein thought to have been used to dodge taxes, Spain's tax agency said.
"They were presumably for tax fraud and evasion," the agency said in a statement.
Spain joined countries such as New Zealand, Australia, Britain, the Netherlands, the United States and Germany in probing secret bank accounts in the landlocked tax haven.