A pair of off-duty FDNY siblings, one a firefighter and the other an EMT, were arrested early Sunday morning for punching cops at a large-scale dispute in a Bed-Stuy park, police said.

Officers drove by Herbert Von King Park in Bedford-Stuyvesant when they encountered a large dispute.

As they broke up the fight and attempted to arrest 20-year-old Kenshawn Selton, the EMT Janice Gardner, 35, approached an officer and allegedly punched him.

Then her brother, firefighter Aaron Gardner, 36, also went up to a cop and allegedly assaulted him. Police officers are unsure of the relation of the siblings with Selton. 

Officers arrested the siblings and both are being charged with assault and resisting arrest, police said.

At the scene officers found a 47-year-old male with lacerations in his head and torso, he was taken to Kings County Hospital.

There was also a 23-year-old man who was struck in the head with a cane, resulting in swelling and bleeding. 

The victims have not been identified.