A Queens woman suspected of being the mom who abandoned her newborn at a Manhattan subway station was arrested and charged Wednesday, police said.

Assa Diawara, 30, allegedly admitted to abandoning her newborn — still with her umbilical cord attached — at the 34th Street-Penn Station stop in Midtown Monday morning, sources told The Post.

Diawara was arrested near her home in Jamaica around 3 a.m. Wednesday and charged with abandonment of a child and endangering the welfare of a child. 3

The arrest came a day after the NYPD released video of the suspect walking down the sidewalk holding a cloth-wrapped bundle in her arms near the subway station shortly after 9 a.m. Monday.

The baby was left on the ground in a bundle of blankets on the 1 train platform, police said.

Diawara was the

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