Tyler Duckworth, the two-time winner of MTV’s The Challenge and former Real World: Key West star, has died. He was 44.

His mother, Toni, announced his death on Facebook Thursday. “My son, Tyler, passed away earlier this week. Cause of death has yet to be determined,” she wrote, adding that she would share a follow-up post when a cause of death was made available.

The Grand Forks Police Department told People that officers were sent to his residence on Tuesday after a neighbor reported water coming through the ceiling from his apartment. Duckworth was found dead in his bathroom, with police telling the outlet an investigation is pending “there. doesn’t appear to be any signs of foul play or suspicious death.”

Duckworth joined the MTV family as a castmember on The Real World: Key West in 2006. From there, he appeared on six seasons of The Challenge. His first stint was on The Duel (2006-07), and he also competed on The Gauntlet III (2008); Cutthroat (2010); Rivals (2011); and the second and third seasons of the All Stars spinoff across 2021 and 2022.

He won his first season of the show on Cutthroat, alongside his teammates Brad Fiorenza, Dunbar Merrill and Tori Fiorenza. Duckworth also won Rivals with his teammate Johnny Devenanzio; Evelyn Smith and Paula Meronek also won that installment.