UK floods: Homes evacuated as flooding persists
Emergency teams are working to evacuate people from homes in York, as flooding continues to hit northern England.
Police advised between 300 and 400 people to evacuate near the River Ouse and River Foss in York, with up to 3,500 properties at risk.
Hundreds of flood alerts and warnings are in place for England, Wales and Scotland, including more than 25 severe warnings - indicating danger to life.
Environment minister Liz Truss said the government will review flood defences.
Ms Truss said there had been "unprecedented" levels of rainfall in parts of northern England, saying it was "right to say" flood defences had been "overwhelmed".
She warned some rivers had not yet reached their expected high peak, saying the Army had been deployed in York, Leeds, and parts of Lancashire.
Prime Minister David Cameron is due to chair an emergency conference call later and will visit some of the flood-affected areas on Monday.
Latest updates from northern England
In pictures: North of England flooding
Officials said pumps at the Foss Barrier - where the River Foss joins the River Ouse - had been overwhelmed and flood barriers had to be lifted, meaning areas in York that would usually be protected were now vulnerable to flooding.
York City Council said the River Ouse was expected to peak at more than 5m - close to to its highest recorded level of 5.40m.
The Environment Agency said the River Ouse's water level had reached 4.65m at 04:00 GMT on Sunday. Its typical level is between 0.5m and 1.9m.
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