Federal grand jury in New York to hear new evidence in criminal case against Sean “Diddy” Combs, according to sources familiar with the matter.

The grand jury is expected to meet Thursday, sources said.

The sources declined to say what the new evidence was or who might be called to testify about it.

MORE: Sean ‘Diddy’ Combs accused of sexually abusing 10-year-old boy in new lawsuit

Federal prosecutors had previously raised the possibility of additional charges against Combs.

A spokesman for the U.S. Attorney’s Office for the Southern District of New York declined to comment.

His trial is scheduled for May, but prosecutors have suggested the timing or duration of the trial could change if they choose to add charges.

MORE: Sean ‘Diddy’ Combs calls for identities of his accusers to be revealed

Combs has denied all allegations against him in both the criminal and civil cases. Following the criminal case, many people filed civil lawsuits against the music producer.

In a statement Monday, defense attorneys responded to new allegations in the civil lawsuit filed against the rapper. Sexual assault on a 10-year-old boy –accusing the plaintiff’s attorney of not being trustworthy.

“The attorney behind this case is more interested in media attention than the facts, as evidenced by his constant press coverage and 1-800 numbers,” the statement said. The statement was included. “As we have said before, Mr. Combs cannot respond to every new publicity attempt, even those that are seemingly ridiculous or provably false.”

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Defense attorneys said they and Combs “have full confidence in the facts and the integrity of the judicial process.”

“The truth will prevail in court: Mr. Combs never sexually assaulted or trafficked anyone, male or female, adult or minor,” defense attorneys wrote. he said.

As for the criminal case, Combs has already pleaded not guilty to racketeering conspiracy, sex trafficking and prostitution charges and is being held without bail over the objection of his lawyers.

As part of his plea, Combs’ lawyers asked the judge to order federal prosecutors to release the identities of his accusers.

Grand jury in Sean ‘Diddy’ Combs case to hear new evidence: Sources originally appeared abcnews.go.com