United Kingdom, Jan. 2 -- Anthony Head's partner Sarah Fisher has died.

The 61-year-old animal rights campaigner passed away with "very little warning", according to her and 71-year-old Anthony's devastated daughters, actresses Emily and Daisy Head.

The said in a tribute, posted on the social media pages for Tilley Farm, Sarah's sanctuary for rescued horses, ponies and donkeys.: "We are so sorry to have to share the news that our extraordinary, kind and talented mother, Sarah, passed away recently. It is immensely shocking to us all and came with very little warning. No words could ever express all that she encompassed, or begin to describe the crater her absence has left.

'We know how profoundly she has impacted the lives of so many, ...