Police searching for four suspects after dog stolen at knifepoint in Toronto

Police are searching for four suspects they allege stole a dog at knifepoint in Toronto.

Police say a man was walking his dog, named Charlie, in a park in the city's north end around 3 p.m. Monday when he was approached by four men on bicycles.

They say the group assaulted the man, put a knife to his throat, grabbed the dog and took off.

Police responded shortly thereafter, but were unable to find the suspects or the dog.

They say the dog is a small, white female Shih Tzu.