Panama is suspending its probe into the Panama Papers, the leak of legal firm Mossack Fonseca’s files on clients who had stored assets in offshore companies, prosecutors said on Tuesday. Mossack Fonseca has argued that the revelations were illegal and based on stolen information. The records from law firm revealed the names of leaders, politicians, celebrities and wealthy individuals from across the world who had used the firm to create offshore companies to hide their assets and evade taxes. Panama’s Attorney General Kenia Porcell informed media that a legal challenge on constitutional grounds required the suspension. Kenia said that it was the decision of the Supreme Court of Panama to rule on the matter and make the decision whether the probe should resume or not. The Panama Papers scandal erupted in April last year when media reports revealed documents leaked by an anonymous source to a German newspaper. The dossier linked some of the world’s most powerful leaders, including Russian President Vladimir Putin, British Prime Minister David Cameron and others to unreported offshore companies. The leaks also generated controversy in Pakistan as the children of Prime Minister Nawaz Sharif were named in the papers. Offshore companies are not illegal per se, but the sudden revelation of data about storage of illegal wealth in offshore companies led to allegations of money laundering and tax evasion.