An Ottawa man was killed after a tree fell on a tent in Mallorytown during a severe thunderstorm over the weekend, police say. Ontario Provincial Police say they received reports shortly after 6 a.m. Sunday that a large tree had fallen on a vehicle and a tent at a campground about 135 kilometres southwest of downtown Ottawa. First responders found a man in his 40s dead inside the tent, police say. The man was not identified. He was accompanied by his 10-year-old child, who sustained serious but non-life-threatening injuries. A postmortem examination will be conducted, police say. A police investigation is ongoing with the Office of the Chief Coroner. A severe thunderstorm on Saturday night and early Sunday morning brought strong winds and heavy rain, downing trees and cutting electricity to thousands across eastern Ontario. Emergency services were also called to Algonquin Park and rescued a mother and her 13-year-old son along North Depot Lake after a tree fell on their tent overnight. The child suffered “very serious injuries,” police say and is recovering in hospital. Anyone with information that could assist the investigation is asked to contact the OPP at 1-888-310-1122 and refer to incident E250806034.