London police are trying to find the owner of a dog that bit a 10-year-old boy Friday afternoon.

The incident happened about 3 p.m. in Southeast Optimist Park, near Glenroy and Deveron. 

Police say the child was bit in the right arm by a Rottweiler. The dog was on a leash at the time.

Police are searching for the man walking the dog. He is described as white or Aisan, in his early 20s, wearing a black shirt.

 Police are hoping to speak with him to confirm vaccination records of the dog.

Anyone with information can call 519-661-5670 or Crime Stoppers at 1-800-222-TIPS (8477).