Thunder Bay Police are investigating a disturbing incident from Monday. They say that a man driving a van approached a 12-year-old boy and asked him to help look for a lost dog. The man is described as about 40-years-old with short black hair and a short goatee. The vehicle is said to be a light turquoise box-shaped van similar to a GMC Safari. Anyone with information is asked to call Thunder Bay Poilce or Crime Stoppers.