Early Friday morning it was reported Scott Weiland of Stone Temple Pilots and Velvet Revolver and, most recently of Scott Weiland and the Wildabouts, fame died. The circumstances of his death are unknown.

The Bloomington, Minn., police department issued a statement that on Dec. 3 officers responded to a report of an unresponsive male in a recreational motor vehicle near the Mall of America. “Officers arrived and determined the adult male was deceased,” the release said.

An investigation into the cause of death is being conducted.

Weiland, who was 48 years old, was the former frontman for rock bands Stone Temple Pilots and Velvet Revolver. He was on tour with his current band, The Wildabouts. Confirmation of his death was posted on his Facebook page.

The news of Weiland’s death lit up Twitter. Dave Navarro (Jane’s Addiction) announced the passing of his friend, but then reportedly deleted the tweet.

Weiland, who has long been known to struggle with addiction, initially came to fame with the Stone Temple Pilots. The outfit found success in the ‘90s, and its 1994 album Purple hit No. 1 on the Billboard charts. (The album contained such unforgettable songs as “Interstate Love Song” and “Vasoline.”)

The group went on to sell more than 13 million albums, according to Billboard, but acrimony among band members eventually caused the Stone Temple Pilots to split.

After Weiland left the Pilots fold, various stand-ins took his slot as lead singer and Weiland hooked up with Guns N’ Roses (sans Axl) to form Velvet Revolver. Their album Contraband was released in 2004, followed by 2007’s Libertad. The Wildabouts released Blaster March 31, 2015.