A bad heart appears to be the cause of two separate collisions at opposite ends of Guelph.
The first incident happened just after 11am on Tuesday at the intersection of Gordon Street and Lowes Road.
Two vehicles were hit in the accident. One of the drivers complained to emergency crews at the scene of chest pains.
Another person in the same vehicle sustained injuries on his hand and both were taken to the hospital.
20 minutes later, police went to a downtown parking lot to a call about another two-vehicle accident.
One of the drivers also complained of chest pain and was also taken to the hospital.
Investigators say none of the injuries were serious.