Two Philadelphia transit police officers had a memorable Christmas Day when a woman suddenly went into labor on a packed train.

Sgt. Daniel Caban and Officer Darrell James noticed something was amiss when the train didn't leave the station as scheduled. 

Instead, a crowd started to form around an open door of the train car. 

When the woman screamed "Philly, my baby is coming!" the officers quickly put on their gloves and did whatever they could to assist with the delivery.

One witness said it was a really quick delivery and soon after Caban and James got there, the baby popped out into their arms. 

The umbilical cord was wrapped around the baby's neck initially, but the officers quickly took care of that too.

"We were just there doing what we do. We're just there to help people in any way, shape or form that comes," said James.

The mother and baby boy are said to be doing OK. Watch Rick Leventhal's full report above.

In the clip below, hear from Caban and James on FOX affiliate WTXF's "Good Day Philadelphia."

FOX 29 News Philadelphia | WTXF-TV