The fire commissioner is warning members of the FDNY not to leak stories to the media.

Daniel Nigro issued a departmental order blasting firefighters for what he called improper releases of information.

It comes in the wake of several stories about the FDNY, including one in the New York Post about a woman who was made a firefighter despite failing a key test.

In the order, Nigro says while only a few FDNY members are responsible, the department has zero tolerance for leaks.

He says, "Behind some misguided sense of 'protecting the standards' their public criticism of our members is an embarrassment to me and should be to all of you. The Fire Department will investigate these improper releases of information and do all we can to identify those responsible."