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Greg Plitt, a reality television star and celebrity fitness instructor, was killed on Saturday after being hit by a train in Burbank, California.

He was 37 years old.

A police spokesperson tells E! News that the accident occurred around 4 p.m., as fire department paramedics pronounced Plitt dead at the scene.

A camera was discovered nearby and it is believed Plitt was filming something at the time of the accident.

The bodybuilder starred on the Bravo series Work Out , which aired between 2006 and 2008; along with its new series Friends to Lovers, which premiered six days ago.

"We couldn’t take our eyes off Greg Plitt after we cast him on "Work Out"-was as nice as he was beautiful.  Seemed invincible, like Superman," Andy Cohen Tweeted soon after hearing the sad news.

Plitt, a Maryland native, was a former U.S. Army ranger who went on to work as a fitness instructor, model and motivational speaker.

He appeared in hundreds of fitness magazines and  was a sponsored athlete for MET-Rx, engineered nutrition, Under Armour Performance Apparel and Gold’s Gym.

"This is a terrible tragedy," Bravo said in a statement posted on Twitter on Sunday. "Our thoughts and deepest sympathy are with Greg Plitt’s family and friends at this extremely difficult time."

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