A 51-year-old Thunder Bay man who lost control of his vehicle and crashed on April 3 has died.

Gary Soderholm died on Sunday, where he had been in critical condition since the incident at Harbour Expressway and Golf Links Road.

Police said an investigation shows that Soderholm appears to have suffered a medical event that caused him to lose control of his grey 2003 Pontiac Sunfire.

Thunder Bay police said he was travelling eastbound on Harbour Expressway when his car veered to the right and struck three southbound vehicles in the intersection at Golf Links Road. Two other drivers, a man and a woman, suffered minor injuries and were taken to hospital. They were later released.

The accident left Golf Links Road closed at that location until 3 a.m. the following day.

Officers found no evidence of excessive speed, and determined that there was no pre-existing condition that would have caused Soderholm's driving privileges to be suspended prior to the collision.

The investigation will likely be concluded when the post-mortem report is complete, police said.