Garbage star Shirley Manson is in mourning after the sudden death of her mother.

The rocker rushed from her Los Angeles base to her family home in Edinburgh, Scotland after learning Muriel Manson, a former singer, had passed away last Wednesday.

Announcing the sad news on her official Facebook page, Manson writes: "My beloved mother died today from complications arising from dementia.

"I just wanted you to know because anyone who has ever been touched by me and my band and our music has in part been touched by my mum."

And the star's father John insists the entire family is "devastated" by the loss.

He says, "The family are all devastated about Muriel's passing. It happened around 8pm on Wednesday evening at home and it was very peaceful... We knew she had been ill for a while and knew it was a matter of weeks or months rather than years."

The news comes just weeks after Manson reportedly announced her engagement to Billy Bush, a sound engineer who has worked with Garbage.