One of Disneyland Paris’ maintenance workers died Saturday at the theme park’s Phantom Manor attraction.

According to a report by French publication Le Parisien, the 45-year-old man was inside the haunted house-like attraction to fix a light fixture. It’s suspected that he died of accidental electrocution, but an autopsy will be conducted to confirm his cause of death. His body was discovered by fellow park employees. The Phantom Manor attraction was closed all day Saturday and will remain closed until Wednesday to allow police to finish their investigation of the incident, which occurred in the early morning before the park was open to visitors.

“We are truly saddened to learn of the passing of one of our Cast Members, and our hearts go out to his family and friends during this very difficult time,” Disneyland Paris said in a statement to BBC Newsbeat.

Situated within Disneyland Paris’ Frontierland, the Phantom Manor adopts a plotline that mimics “The Phantom of the Opera” and offers park visitors a special effects-filled experience that combines a walkthrough with an Omnimover ride. The park attracted nearly 15 million visitors in 2015, earning it the title of most visited theme park in Europe.

Back in 2010, another Disneyland Paris employee died after getting trapped under a boat while tending to the “It’s a Small World” attraction.