A Southampton Town police officer was able to revive a baby boy who had stopped breathing after the child’s elementary school-aged sister called 911 for help, police said.

The incident occurred at a home in Westhampton at 8:10 a.m. on Wednesday, police said. The family’s identity has not been released.

Police said Officer Kristian LoRusso responded to the scene and on arrival, was handed the 1-year-old child by the baby’s mother.

The infant was “blue and not breathing,” police said, adding that the mother could not communicate effectively with the officer because of a language barrier.

LoRusso, a 16-year department veteran, checked for a pulse, but found none, police said. He then began “rescue breathing and chest compressions” and police said the baby soon began to breathe on his own.

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The child was then transported to Peconic Bay Medical Center in Riverhead by Westhampton Beach Ambulance. Police said the officer was credited with saving the child’s life.

Before joining Southampton police, LoRusso worked for the NYPD for 2 1⁄2 years, police said.