Police investigate 'disturbing' find of severed horse head on SA doorstep

Police are investigating a "disturbing" incident where a severed horse's head was left on the front doorstep of a South Australian home.

Amy Louise was home with her partner in Murray Bridge on Sunday night when the dog started growling at the door.

"It was weird as he would normally bark," she said.

READ MORE: Three US marines dead, 20 injured in Aussie crash

But when they stepped outside, there was a disturbing discovery: a bloodied horse head on the front step.

"There was a horse head, cut off, which is very disturbing," she said.

"We're in shock."

She said she had no idea why the animal's head was left there.

"My partner is a beautiful person and he doesn't deserve this," she added.

READ MORE: Staggering worth of Trump mugshot revealed

"I want people to wake up and realise what they're doing, I'm fearless, I'm not scared and this needs to stop now," she added.

Police confirmed that officers were called to the Murray Bridge property and are now investigating the incident.

"Police have yet to locate the outstanding remains of the animal," police said.