Ryan Knight who appeared on ‘The Real World: New Orleans’ in 2009, has died aged just 29, MTV has confirmed. “We are saddened to hear the news of the passing of Ryan Knight,” the channel said in a statement. Adding, “Our thoughts and condolences are with his family and friends at this difficult time.”

The cause of Knight's death is not yet know and an autopsy conducted on Friday didn't find any "anatomical cause of death.” Police are now waiting on result of a toxicology report.

TMZ reports that Knight was out on Wednesday night and was found dead on Thursday morning by a friend. A report by the Kenosha police also states that Knight had “complained of stomach issues the last two days” and that they are “looking into the death as being medical or accidental, pending toxicology.”

More: Diem Brown, MTV Reality Star, Dies After Cancer Battle Aged 32

Knight is the second MTV star to die this month after Diem Brown, who appeared with Knight on ‘The Challenge”, passed away on November 14th after a long battle with cancer.

Many of Knight’s MTV co-star have paid tribute to the 29 year old on twitter. His on/off girlfriend Jemmye Carroll posted a touching tribute on the social media site writing, “Words will never be enough to justify the connection we shared and the pain I will forever feel. RIP @Knight_MTV .”

While Zach Nichols tweeted, “You lived your life in the fast lane, and your smile was contagious. My bunkmate, my buddy. Rest easy pal, I'll miss you. @Knight_MTV”