An MTA worker was struck in the head by a suspect, possibly wielding a hammer, who broke into a dispatch room at a subway station in Chelsea.

The suspect, 27-year-old Alexe St. Fleur, entered an MTA dispatch room at the 8th Ave. station at around 1:45 a.m. Tuesday and got into a dispute with employees.

According to investigators, he pulled out a hammer or some type of tool and struck a 51-year-old MTA worker in the head.

Police say St. Fleur then grabbed a backpack and ran away, eventually hiding under a stopped subway train.

Police tracked him down, pulled him out from under the car and took him into custody.

The arrest was caught on camera.

The victim was taken to Lenox Health Greenwich Village emergency room.

St. Fleur is facing several charges including robbery and assault.

“This was a senseless attack on a transit worker whose job is to move trains safely and rapidly so riders can get where they need to go, and we’re pushing for the perpetrator to face jail time. I had a good conversation with my colleague this morning and am hopeful for his speedy recovery,” NYC Transit Senior Vice President of Subways Demetrius Crichlow said in a statement.