A teenager was rescued from drowning after a group of boys tried to swim across the River Thames.
The group of five teens were spotted crossing the Thames in the Teddington area by local RNLI volunteers.
One of the boys was “suddenly unable to swim further”, shortly before the volunteer crew “saw his head go under the water”.
A throw bag was tossed into the river and the boy had to be dragged to safety.
The incident have led to local police officers warning visitors from entering the River Thames, despite the increasing temperatures.
Richmond Police said: “Please be careful if you’re by the riverside. It can be tempting to cool off, and it might look swimmable. But the Thames is not a pool.
“We’re working with our partners to discourage inappropriate behaviour and act safely on our riversides.”