BROOKLYN – A young mother let her baby roll off the train to fight with another passenger.

It is believed the young mother heard, “Let it go! The baby!”  And did just that.

After exchanging words with another female passenger (in white) during the morning commute on a Manhattan-bound L train, the mother (in blue) released her grip on the stroller (in red) allowing it to roll off the train and onto the platform.

While one passenger graciously captured the mayhem, other Good Samaritans kept watch over the young child as the women got their catfight on.

The lady in white clearly won this one by staying on the train and losing only her wig in the battle. The lady in blue, who was rescued by even more friendly New Yorkers, eventually reconnected with her baby on the platform to wait for the next train.

Yesterday afternoon, the mother was interviewed and filmed for Ricki Lake’s new motherhood documentary, “Don’t Throw Momma From the Train.”