NEW YORK (Reuters) - Former IMF chief Dominique Strauss-Kahn was released without bail at a New York court hearing for his sexual assault case on Friday.

At a hearing to seek changes to his bail conditions, prosecutors said the credibility of the hotel maid at the center of the case had been thrown into question.

"I understand that the circumstances of this case have changed substantially and I agree the risk that he would not be here has receded quite a bit. I release Mr. Strauss-Kahn at his own recognizance," Justice Michael Obus told the court.

Strauss-Kahn faces charges including attempted rape, sexual assault and sexual abuse.

(Reporting by Basil Katz, editing by Christine Kearney)