The news was confirmed by her publicist in a statement, but no cause of death has yet been announced. O’Riordan, who had to cancel a tour with a reunited Cranberries in 2017 because of a back problem, had been in London for a recording session.
The statement described the death as sudden, and added: “Family members are devastated to hear the breaking news and have requested privacy at this very difficult time.”
A Metropolitan police statement also confirmed the news, and that O’Riordan’s body was found at a Park Lane hotel. “At this early stage the death is being treated as unexplained,” the statement read.
A spokeswoman for the London Hilton on Park Lane said: “It is with deep regret that we can confirm a guest sadly passed away at the hotel on Monday 15 January. We offer our sincere condolences to their family at this difficult time.”