Emergency services have launched a search for a man who is feared to have drowned in the Thames in Berkshire.
Pictures showed crews on the river responding to the incident close to Odney Weir in Cookham, near Maidenhead, on Tuesday evening.
Police said a search was under way to locate a man who was seen entering the water.
The local force tweeted: “We are on the scene in Odney Lane, in Cookham, following a report of a fear for welfare.
“It was reported that a man had entered the water.
“Officers are working to locate the man, who was not seen to get out of the water.”
A spokesman for the South Central Ambulance Service said they were supporting Thames Valley Police and firefighters at the scene. The critical care unit was also sent for support.
There had been reports on social media that three boys had drowned, but the ambulance service confirmed in a tweet that this was not correct.