Police in Canada are searching for a Briton believed to have been swept to his death over waterfalls in British Colombia in an incident in which two others died.
The 50-year-old man from Scotland, who has not been named, is thought to have tumbled over a set of falls on the Kettle River near Grand Forks.
The bodies of a local couple in their 70s, who were sharing a small inflatable dinghy, have been recovered from the water.
They have been identified by the British Columbia Coroners Service as Ronald Legare, 74, and his wife Jacqueline Jean Legare, 71, according to CBC News.
A search for the Scot is ongoing but local police say he is presumed to have drowned following the incident on Saturday.
Police believe the three were in a family group of around 13 people. It is thought they were tubing along the river and were swept away after missing the safe place to stop.
The Scottish man's 16-year-old son apparently swam to the shore and raced along the river bank in a bid to catch his father before they disappeared.
Barry Savitskoff, head of the Grand Forks Search and Rescue, told the Vancouver Sun: "He was running all the way down the train trestle to catch any of the three. He's pretty distraught."
Grace McGregor, the elected representative for Kootenay-Boundary, added: "The water just got faster, sooner. It just got rough and they were thrown overboard. It was hard for them to get out."
Tubing, where people float down rivers on inflatable rubber rings, is a popular recreational activity in Canada and North and South America.
The Royal Canadian Mounted Police (RCMP), said: "The 50-year-old man was also swept over the Cascade Falls on the Kettle River late Saturday afternoon.
"An extensive air and ground search was completed late Sunday afternoon which yielded no sign of the man. Search and rescue technicians will monitor the area in the coming days in attempts to locate the man's body.
"The family of the 50-year-old Scottish man have been advised by the RCMP and Grand Forks Victim Services personnel, that the man is presumed to have drowned."
The Foreign Office confirmed it was aware a British national was reported missing in Canada on July 29.
A spokesman said: "We stand ready to provide consular assistance."
Rivers in British Colombia are particularly dangerous this year because of higher rainfall than usual and melting snow, which has pushed up water levels.