The victim in her 80s was discovered at around 10.35am in Tapton Terrace in Chesterfield by emergency services

A police spokesman said: "Investigations are continuing into the cause and circumstances surrounding her death, but it is believed it is related to the flooding seen in the Chesterfield area."

Three other people have died since the storm hit the UK on Wednesday while a search continues in Aberdeenshire after a report of a man trapped in a vehicle in floodwater.

It comes as the Environment Agency (EA) warned high water levels caused by flooding from major rivers could continue until Tuesday.

Three severe flood warnings, which means there is a threat to life and is the highest level of warning that can be issued, were put in place yesterday around the River Derwent in Derbyshire, meaning deep and fast-flowing water carries a significant risk of death or serious injury as well as serious disruption to local communities.

Derby City Council said there were record-breaking water levels in the River Derwent and said the clean-up could take several days.

Meanwhile, people in parts of Retford, Nottinghamshire, have been advised to evacuate their homes after severe flood warnings were issued.

The warnings apply to communities along the River Idle at Retford, Eaton and Gamston as well as West Retford and Ordsall.

These severe flood warnings have been issued because of flooding in Thrumpton, Retford, as a result of Storm Babet.

The area most at risk is Darrel Road in Retford.

Despite the worst of the storm now having passed, rivers in North Yorkshire, the Midlands and the South West could also continue to overflow, the agency said.

"Ongoing flooding is probable on some larger rivers including the Severn, Ouse and Trent through to Tuesday," said EA flood duty manager Katharine Smith.

Pictures gathered by a Sky News team in Rotherham and Catcliffe in South Yorkshire showed cars submerged up to the tops of their doors.

In Scotland, where there was a red weather warning in the east of the country on Saturday, a large number of homes that lost power have been reconnected.

Scottish and Southern Electricity Networks said it restored power to 36,000 of its customers by 4.45pm on Saturday following a "day of progress" and was making a "final push" to "reconnect the remaining 700 properties".

The most vulnerable customers are being "spoken to directly and are being offered practical help, support and accommodation where necessary", it added.

The last remaining Met Office weather warning, for rain, expired at midnight.

In the North Sea, off the coast of Aberdeen, a company operating a drilling platform said it had removed non-essential personnel after four of the platform's eight anchors became detached in severe weather caused by Storm Babet.

Stena Drilling Limited said two coastguard helicopters and a search and rescue helicopter were "mobilised to transfer 45 non-essential personnel from the drilling unit to neighbouring platforms and to Sumburgh on the Shetland Islands".

The Stena Spey platform remains secure and stable, the company added.

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In London, King's Cross station was closed on Saturday afternoon to "manage passenger numbers".

Managers said it was because Storm Babet had brought "severe disruption to the rail network".

A retired man with Parkinson's disease said there was a "high chance of a crush" during overcrowding at the central London terminal.

John Hinson, 61, from North Ferriby in East Yorkshire, said people were "crashing against the barrier" as they tried to reach their trains.

"It was just so dangerous," he said.