“NBC Nightly News” anchor Brian Williams is now the target of an internal investigation for lying about dodging danger while reporting in Iraq, sources told The Daily News.

The probe is being led by Richard Esposito, who heads NBC’s investigative unit, they said.

Esposito previously worked as an investigative correspondent at ABC and before that was an editor at The Daily News.

The revelation that Williams is being probed by sleuths at his own network came as his predecessor publicly denied urging NBC bosses to can the anchorman.