An ambulance rushing to a double shooting in the Bronx that resulted in a fatality collided with another vehicle last night, critically injuring the car’s driver, authorities said.

The mayhem began at about 6:15 pm, when Jonathan Kistoo, 22, and another man were shot on a Foxhurst street, police said.

The ambulance was en route when it crashed with a car driven by a woman in her 50s, authorities said.

Another ambulance arrived to treat the gunshot victims, the FDNY said.

Kistoo, who was struck in the chest, was DOA at the hospital. The other man, who was shot in the leg, was expected to survive

The driver of the car was taken to Lincoln Medical Center, along with the two paramedics, who suffered minor injuries.

The suspect in the shooting was still at large.