New York attorney general Andrew Cuomo is preparing to file civil securities-fraud charges against UBS, possibly as early as this week, the Wall Street Journal said on Wednesday.
The lawsuit could also include allegations of wrongdoing by senior UBS executives, the newspaper said, citing people familiar with the probe. It was not clear which individuals would be named or whether charges against individuals would be filed, it added.
Cuomo's office could file charges against other entities it is investigating in coming weeks, the newspaper said, citing the sources.
In April, Cuomo and securities regulators in several U.S. states launched an investigation into auction-rate securities and the role of Wall Street firms, including UBS, in attracting investors into the troubled market.
The office of the New York state attorney general and UBS did not return calls seeking comment.