Police are seeking help in identifying a suspect who allegedly assaulted a bicyclist on a train in Flatbush.

Police say the incident happened at the Church Street station when the victim was riding the Q train headed southbound with his bike.

The attacker kicked the victim’s bike, and the two had an argument before the suspect repeatedly started punching the bicyclist’s face.

The suspect then fled.

Police provided News 12 with a video showing the suspect walking through a turnstile wearing a bright orange jacket and blue hat.

Some people on the subway told News 12 that they will be on the lookout for the suspect.

Anyone with information is asked to call Crime Stoppers at 1-800-577-TIPS, or head to their website here.