A man was killed after his foot got caught in the gap between the train and platform as he exited a subway train in Brooklyn Wednesday night.

It happened around 11:40 p.m. at Avenue M and East 16th Street in the Midwood section, where the 37-year-old victim stepped off a Q train at the Avenue M station and got his foot stuck.

The man, identified as Marcus Bryant, was then dragged across the platform and ultimately thrown behind the train onto the tracks, where he was hit by a second train a few minutes later.

It was initially thought Bryant got his foot or pants caught in the closing door, but the MTA has since clarified, after reviewing surveillance video of the horrific incident, that it was not an issue with the door.

“We do not believed this is a door incident,” NYC Transit President Richard Davey said. “We believe he was caught between the platform and the train.”

Police say Bryant screamed as he was being dragged, and a person who heard the screaming ran for help.

Three minutes later, another subway train entered the station, and that train is believed to have then struck the victim.

Police say Bryant suffered severe injuries, including severed limbs.

He was rushed to Maimonides Medical Center, where he was pronounced dead.

Part of the investigation will include into whether the conductor followed protocol to look at platform before train left the station.

“A conductor should have his or her head out the window when doors close and be looking to the left and right for approximately 75 feet,” Davey said. “We do have doors that are sensitive to catching gaps that are open, but again, this was not a door incident. Which again, the protocol is to make sure those doors are working and…to have a conductor to be looking out the window. Or some instances, we have CCTV for the conductor, so he or she can look up.”

The investigation is ongoing.