A body has been found by police searching for an elderly man believed to have fallen into the River Kent in flood-hit Cumbria.
An underwater search team is working to recover the body which was discovered in the Kendal area, Cumbria Police said.
Officers were called to reports that the man had fallen into the swollen river shortly after 10am on Sunday.
David Cameron will visit areas hit by the devastating floods amid mounting criticism of multimillion-pound defences which failed to keep the deluge of water out of people's homes.
The Prime Minister said he would travel to "badly-hit" places after chairing a meeting of the Government's Cobra emergency response committee, as northern England and Scotland brace themselves for more heavy rain.
After Cumbria, the county worst affected by Storm Desmond, declared a major incident over the weekend, the Met Office has issued a severe weather warning for rain across north west England and western Scotland this week.
More than 45 severe flood warnings are in place, meaning there is a danger to life, across the North West, along with dozens of less serious flood warnings and flood alerts over northern England and Wales.
In Carlisle, the Army was sent to help support emergency services evacuating people from their homes in streets where cars were almost entirely submerged.