Special counsel Robert Mueller’s team is working with New York Attorney General Eric Schneiderman on its investigation into Paul Manafort and his financial transactions, according to several people familiar with the matter.

The cooperation is the latest indication that the federal probe into President Donald Trump’s former campaign chairman is intensifying. It also could potentially provide Mueller with additional leverage to get Manafort to cooperate in the larger investigation into Trump’s campaign, as Trump does not have pardon power over state crimes.

The two teams have shared evidence and talked frequently in recent weeks about a potential case, these people said. One of the people familiar with progress on the case said both Mueller’s team and Schneiderman’s have collected evidence on financial crimes, including potential money laundering.

No decision has been made on where or whether to file charges. “Nothing is imminent,” said one of the people familiar with the case.