The lead singer for the Irish band the Cranberries has died unexpectedly.

BBC reports that Dolores O’Riordan died during a recent visit to London. She was only 46, and there had been no previous reports of an illness.

“The lead singer with the Irish band The Cranberries was in London for a short recording session,” her publicist said in a statement obtained by BBC.

“No further details are available at this time …Family members are devastated to hear the breaking news and have requested privacy at this very difficult time.”

According to the Daily Mail, O’Riordan was in a hotel room in London when she died.

With her powerful and distinctive voice, O’Riordan led the Cranberries to international success in the 1990s with hits like “Zombie” and “Linger.” Throughout her career, O’Roirdan largely stayed out of gossip and tabloid news and was not known to have a substance abuse problem. Last May, in an interview to promote a new album, O’Riordan said she had been diagnosed with bipolar disorder and was managing it.

She leaves behind three children from her ten-year marriage to Don Burton, which ended in 2014.

[Feature image: Associated Press/Dolores O’Riordan]