The Biggest Loser has shut down production because of a labor dispute, Deadline.com reports.
Filming on the NBC series was suspended Monday night after the crew walked off set, with support from the International Alliance of Stage Employees union, in an effort to unionize. IATSE and Reveille, the company that produces The Biggest Loser, are in talks to reach an agreement, according to the site.
Loser, which debuted in 2004, averaged 6.6 million viewers last week.
Reps for the NBC series did not respond to TVGuide.com's afterhours emails.