The Southern Georgian Bay OPP are seeking witnesses following an incident in Port Severn on July 6.
Police say around 8:30 p.m. a man was observed stepping off the Highway 400 northbound bridge in Port Severn. He was reportedly wearing a grey t-shirt, black pants and running shoes.
A coordinated response was launched involving multiple OPP units, including the Marine Unit, Aviation Services, and Underwater Search and Recovery.
Police say search efforts went well into the night with no results.
Police remain concerned for the wellbeing of the individual. Anyone who may have been driving by or swimming in this area at this time is asked to contact the OPP at 1-888-310-1122.

