A 59-year-old man from Nepean is dead after scuba diving in the St. Lawrence. Grenville County OPP and EMS were called to the Rothesay Dive Wreck site east of Maitland around 8:30pm Wednesday. The man had been scuba diving with a group and as they exited the water, he appeared to be in distress. The victim was brought to shore by the other divers and was taken to hospital where he was pronounced deceased. An autopsy has been scheduled. The investigation is ongoing.