N.Y. Civil Practice Law & Rules § 4113 – Disagreement by jury

(a) Unanimous verdict not required. A verdict may be rendered by not less than five-sixths of the jurors constituting a jury.
(b) Procedure where jurors disagree. Where five-sixths of the jurors constituting a jury cannot agree after being kept together for as long as is deemed reasonable by the court, the court shall discharge the jury and direct a new trial before another jury.