OPP divers and sonar equipment are now being used to help in the search for a missing Chatham-Kent man.
The 66-year-old went missing Sunday night and it is believed he may have slipped into the Thames River while looking for his dog.
The OPP Dive Team arrived on scene yesterday to help.
This is day 3 of the search.
At the family's request, the man's name will not be released.