CHICAGO (CBS) — A Lake County Forest Preserves ranger helped save a baby’s life last weekend.

On Saturday, Officer Logan Dreyer was on duty at the Greenbelt Cultural Center in North Chicago, when a baby at the event stopped breathing and was not moving.

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Dryer, 24, had only been on the job for a month. He called 911, and then began administering infant CPR to the 15-month old boy.

“I can’t remember what I was thinking, I just did it. That was it,” Dreyer said.

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The baby began breathing on his own, but only took a few breaths at a time before stopping again. Dreyer continued to administer CPR until North Chicago paramedics arrived and took over. The baby was then transported to Vista Medical Center in Waukegan.

The baby’s family said the incident might have been caused by a seizure. The boy has since been released from the hospital, and is doing very well.

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Dreyer insisted he’s not a hero, saying “I was just doing my job;” although he said helping save the baby was “the best feeling I’ve ever felt in my life.”