Matthew Morrison on Thursday expressed outrage over reports of dog abuse occurring during production of his upcoming film, Crazy Alien. On the set of the Chinese science fiction movie, it appears a German shepherd was mistreated during a stunt sequence, according to raw video taken by a whistleblower.

“I’ve just been made aware and seen a video from the set of a film I worked on in China,” the Glee star tweeted. “My heart is broken to see any animal treated this way. Had I been on set or known about this, I would have made all efforts to stop this. I’ve called the producers to express my outrage.”

I’ve just been made aware and seen a video from the set of a film I worked on in China. My heart is broken to see any animal treated this way. Had I been on set or known about this, I would have made all efforts to stop this. I’ve called the producers to express my outrage. — Matthew Morrison (@Matt_Morrison) March 16, 2018

The video shows the dog being locked inside a cage, then suspended in the air before being spun around by a crane and dropped into water.

According to PETA, citing the whistleblower, there were multiple takes of the scene, the dog not being given a break in between.

“PETA is urging the actors to hold the production accountable and calling for the public to boycott this film,” the animals’ rights organization said in a statement. “This scene should be cut, and Ning should commit to never working with live animals again. We’re asking that the cast — including Glee actor Matthew Morrison — donate their salaries to animal-protection charities in China.”

Representatives for the film’s production company, Dirty Monkey Films Group, responded to the video in a statement.

“We sincerely apologize for any animals that were mistreated on our set,” the statement reads. “We always strive to treat all cast and crew, human or animal, with the utmost respect, and are deeply troubled by the reports of an animal in distress on our production. There is no excuse for any failure to fully account for the welfare of any animal brought into a film, and we will be conducting a full review of our live animal practices and safeguards going forward.”