NEW YORK (AP) _ ``Law & Order'' star Jerry Orbach has died of prostate cancer at age 69, a representative of the show said. Orbach announced last month he had been diagnosed with the disease.

Orbach, 69, starred for 12 seasons in the original ``Law & Order'' series, but left to head the spin-off ``Law & Order: Trial by Jury,'' set to debut next year.

His representatives had said Orbach was receiving treatment since spring, but refused to discuss how advanced the illness was or the nature of the treatment.

Orbach began playing Detective Lennie Briscoe in 1992, the original show's third season.

Born in the Bronx, he was in the original cast of the off-off-Broadway hit ``The Fantasticks'' and has appeared in such films as ``Dirty Dancing,'' ``Prince of the City'' and ``Crimes and Misdemeanors.''