Port Authority police came to the aid of a New York City woman who gave birth on the Jersey City side of the Holland Tunnel.

Flickr user Eric Molina

Ying Chen and Kai Tang, who live together in Brooklyn, had been in Philadelphia and were headed home to meet with their doctor when the 21-year-old Chen went into labor. Tang pulled off the road around 6:45 a.m. Monday near the tunnel's entrance in Jersey City and sought help, attracting the attention of officers Catherine Prior and Luis Alvardo.

The pair assisted Chen and called for an ambulance. Officer Matthew Smith, who also is an EMT, soon responded and was able to clamp and cut the infant's umbilical cord.

Chen and her daughter were taken to a hospital, where both were in good condition.

(Copyright 2013 by The Associated Press.  All Rights Reserved.)