An elderly Port Huron man was seriously injured in a car accident that occurred on Military Street near Conner Street in Port Huron last evening. The man, who police have not identified, was taken to St. Joseph Mercy Port Huron hospital before being transported to McLaren Macomb hospital. Witnesses say they saw the driver traveling at speeds near 70 mph on Military Street. The vehicle came to a stop on the grass east of Military Street near the intersection. Reports say that shortly before the crash, the driver hit a vehicle northbound in the 200 block of Gratiot Avenue. Both passengers of that vehicle, reported seeing the man slumped over the wheel as though he was having some kind of medical issue.