GENEVA — An employee of the law firm at the center of the leaks of the Panama Papers, which have revealed offshore wealth held in secretive accounts worldwide, has been arrested here on charges of data theft, one of the employee’s lawyers, Romain Jordan, said on Wednesday.

It was not immediately clear what connection, if any, the person might have had with the Panama Papers, a trove of 11.5 million documents from a Panama-based law firm, Mossack Fonseca. A consortium of news organizations began publishing findings from the documents — some dating to the 1970s — in April, and the disclosures have prompted investigations of politicians and other prominent figures around the world.

On Wednesday, the Swiss newspaper Le Temps reported that an information technology employee in the Geneva office of Mossack Fonseca had been arrested on suspicion of stealing confidential information. Computer equipment was seized as part of the inquiry, Le Temps reported.

Asked about the report, a spokesman for Claudio Mascotto, the chief prosecutor in Geneva, declined to comment. The spokesman said only that the office had opened a criminal investigation based on a complaint filed by Mossack Fonseca. The employee’s name was not made public, and the lawyer did not give his client’s name or provide any detail about him.