The search has resumed for a second day for a man after a rowing boat capsized on the River Thames in Surrey.

Crews from Surrey Fire and Rescue Service, Coastguard and Police witnessed the scene at Sunbury Lock, near Wheatleys Eyot, at around 08:50 BST on Friday.

Surrey Police said that of the six adults who entered the water, “five of them have since been found.”

But law enforcement confirmed Friday evening that they believed a man in his 60s “may still be in the river.”

A spokesperson for Surrey Search & Rescue said on Saturday morning that they were “supporting police in the search for a missing person in the Sunbury area”.

Three of the five people rescued were taken to hospital for further checks, an ambulance service spokesperson said.

Rescue teams have appealed to the public to avoid the area while the search continues.

A woman walking her dog near the river on Friday evening said she saw a red rescue boat on the water at around 10:00 BST and that there was a helicopter nearby at the same time.

The woman, who wished to remain anonymous, said: “We could see they were searching in the water, they had walkie-talkies, we could tell they were searching for something.”

The Environment Agency had issued a “red warning: strong current” warning for the section of the Thames between Shepperton Locks and Molesey on Friday morning.

Efforts are underway to determine how the boat capsized.