Robert Morgenthau, with four decades of public service as the top federal and state prosecutor in Manhattan, died Sunday at age 99.

Marty Lipton of Wachtell, Lipton, Rosen & Katz, where Morgenthau was of counsel, said he became sick about a week ago and died from his illness. The New York Times reported that his wife Lucinda Franks said he died at Lenox Hill Hospital.