A falling tree branch struck a 64-year-old man who was walking in Van Cortlandt Park on Sunday, breaking his leg, police sources said.

The branch broke off near the corner of East Gunhill Road and Jerome Avenue in The Bronx and fell between 50 and 75 feet, hitting the man at about 5 p.m., sources said.

The man suffered a broken femur and was taken to Jacobi Hospital in stable condition.