The Cranberries frontwoman Dolores O'Riordan was reportedly found dead in the bathroom of her hotel suite.
News of the Linger singer's sudden passing at the age of just 46 on Monday (15Jan18) shocked the music world.
According to Britain's Daily Mail newspaper, the rocker was found dead by staff in the bathroom of her room at the Hilton on Park Lane hotel in London.
"They found her in the bathroom," a member of staff told the newspaper. "But the staff that found her have not said anything more, so we don't know if it's suicide or what."
Another staff member said shocked cleaners discovered her body after entering her room on the assumption she had left.
"The people who found her said they found her in the toilet," the hotel worker explained. "I think it was the cleaners who had gone in there because there was no activity around the hallway or from the room. They didn't say how they found her, this has been kept private."
On Tuesday (16Jan18), a police spokeswoman confirmed officers were not treating her death as suspicious and the case has now been passed on to a coroner.
Dolores had been in London for a recording session with the band Bad Wolves, where she was to sing on a new cover version of The Cranberries' 1994 hit Zombie.
Tributes to the singer have poured in since her death, with former The Smiths bassist Andy Rourke the latest to remember Dolores.
Andy, who played with her in the group D.A.R.K., wrote on Twitter: "I am heartbroken by the unexpected passing of Dolores. I've enjoyed the years spent together and (I was) privileged to call her a close friend. It was a bonus to work with her and witness her breathtaking & unique talent, I will miss her terribly."