Grenville County OPP say a 57-year-old man from Brockville is dead after a diving incident in Cardinal.
OPP said the man was diving with friends from Legion Way into the St. Lawrence River. Police said the man encountered distress after completing a dive.
Friends of the man said they called 911, but their cell phones connected with cell phone towers on the U.S. side of the border. As a result, the friends said it took them twenty minutes to connect with an emergency dispatcher in Canada.
The cause of death will be determined by a post-mortem examination.
Foul play is not suspected and a coroner will be investigating.