A Sunset Park couple expecting to have their baby in a Philadelphia hospital instead welcomed their newest family member Monday morning on the New Jersey side of the Holland Tunnel with the help of Port Authority police officers.

Ying Chen, 21, and Kai Tang, 24, greeted their baby girl after she was delivered at about 6:45 a.m.

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The baby was born as Port Authority officers Catherine Prior and Luis Alvardo stopped to help.

The officers stopped after seeing Tang standing outside his Nissan sedan and waving frantically for help as Chen went into labor inside.

After the two officers gave Chen first aid, Port Authority officer Matthew Smith, a trained EMT who had also responded, helped deliver the child with an obstetric kit and oxygen from a nearby Port Authority police booth.

Smith cut the baby's umbilical cord, Port Authority spokesman Joseph Pentangelo said.

Chen and her daughter were taken to Jersey City Medical Center in good condition, officials said.