A baby girl was found abandoned on the steps of a buzzing Midtown station during the Monday morning rush, cops said.

The child – who appeared to be a newborn – was discovered around 9:30 a.m. on the stairs leading to the southbound 1, 2 and 3 trains at 34th Street-Penn Station, authorities and sources said.

The person who made the startling discovery called 911, drawing first responders to the scene, police said.

The NYPD tape off a section of the subway station at 7th Ave and 34th St., NYC, after a newborn baby was found alive and abandoned. Matthew McDermott

People walk down into the station where the baby was found. Matthew McDermott

The baby, who was conscious and alert, was taken by EMS workers to Bellevue Hospital in stable condition, cops said.

The NYPD is sifting through su

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