A man pulled from the inner harbour in Owen Sound remained in critical condition on Wednesday.
Police responded to a call to the east harbour wall around 10 p.m. Tuesday.
Members of the Owen Sound Police Service and Fire Service were able to pull the man from the water and begin CPR.
Grey County paramedics continued with life-saving techniques and transported the man to Grey Bruce Health Services. The 48-year-old man remains in critical condition.
Police asking anyone with information about this incident to contact them.