A four-year-old girl was bitten on her face by a dog in Huddersfield.
Police say the attack occurred in a well-used ginnel in Longroyd Lane at 2.20pm on August 29.
Detective Inspector Ian Thornes of Kirklees CID said: "This little girl has suffered cuts and nicks to her face, around her nose and cheek area. She is OK and has not required hospital treatment."
He says the black dog was being walked by a black man, aged 32-35-years-old. He is of slim build and 5ft 11ins tall with short black hair.
The dog owner pulled the dog away from the child and continued on his way without making any comment.
Det Insp Thornes said: "Thankfully the injuries are minor though obviously it could have been a lot worse.
"I would ask that anyone who was in the area at the time, who recognises the description of this man or who knows anything about this incident to get in touch."
In unrelated investigations, police would like to speak to the people pictured in the image gallery below. The people pictured in the images may be witnesses as well as suspects. If you recognise anyone, contact police on 101 quoting the reference number on the image caption.