Actor and Fitness Instructor Greg Plitt Struck, Killed by Train

— -- Actor and fitness instructor Greg Plitt was struck and killed by a train just north of Los Angeles Saturday, officials said.

Plitt was in Burbank with two other people when he was hit by a Metrolink train a few minutes after 4 p.m., Burbank Police Department Watch Commander Scott Meadows told ABC News today.

The conductor reportedly said he hit the horn and the brakes, but Plitt didn't react, according to police.

Plitt, 37, was found dead at the scene.

Burbank police say the actor and one person he was with had been carrying cameras at the time.

"We do require film permits if you're outdoors, but there was no permit on file," Meadows said.

The cameras have been seized as evidence.

Police have interviewed Plitt's companions, witnesses and the roughly 185 people on the train at the time of the collision, but detectives are still "trying to determine exactly what happened," Meadows said.

Plitt, an actor and fitness model, is in the Bravo reality dating show "Friends to Lovers," which premieres Monday, Variety reports. Plitt also appeared in Sylvester Stallone and Robert De Niro's boxing film "Grudge Match," and the Bravo docu-series "Work Out," according to Variety.

The accident remained under investigation, police said today, and the coroner will determine the official cause of death. This is not believed to be suicide, Burbank police said.