Canadian director and producer Jean-Marc Vallee died suddenly at his cabin just outside Quebec City, Canada, on Sunday at the age of 58.

Vallee, who was most known for directing the 2013 film Dallas Buyers Club, which won several Oscars, was confirmed to be dead by his representative Bumble Ward, according to the New York Post.

"He was a friend, creative partner and an older brother to me," said Nathan Ross, a partner in Crazyrose, Vallee's production company, per CNN.

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"The maestro will sorely be missed but it comforts knowing his beautiful style and impactful work he shared with the world will live on," said Ross.

Vallee, who was known for taking a "naturalistic approach" to his films, using natural light and handheld cameras, received an Emmy after directing the television show, Big Little Lies.

Among the stars that Vallee worked with were Matthew McConaughey, Jake Gyllenhaal, Reese Witherspoon, Nicole Kidman, and Amy Adams.

The Canadian director was also known for providing his cast with the ability to move freely during the filming of a scene. A notable example of this is when he gave cast and crew the ability to move about the Pacific Coast Trail in order to film the 2014 film Wild, according to the New York Post.

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His cause of death is still unknown, according to the outlet.