Hunt for missing kayaker on River Thames near Richmond
A kayaker has gone missing on the River Thames in south-west London, the coastguard has said.
Lifeguards are searching for the man, who disappeared between Richmond and Glover Island at about 12:30 BST.
Three lifeboats and a police helicopter are involved in the hunt after an upturned boat was spotted by the crew of a ferry.
The man was not wearing a buoyancy aid, said Bob Forbes, the watch manager at London Coastguard.