A horse has been found dead in a Derbyshire field after it was fed by a stranger who thought they were trying to help, police said.
Officers believe the horse was fed dry sugarbeet, taken from a nearby shed and given to the white, Welsh pony, Ebony.
But sugarbeet needs to be soaked for 24 hours before being given to animals as it absorbs moisture, swells and can prove fatal.
The food was taken from Wilne Road, Draycott, between 4 and 5 December.
Pc Tom Craig, of Derbyshire Police, said: "It is a highly unusual incident and we think that whoever has done this thought they were being nice to the horse but unwittingly their actions have ended up with it being killed.
"We'd appeal for anyone who may have seen or heard anything in the area to get in touch. We'd also ask for people to be aware about this incident to prevent a similar thing from happening again," he said.