Media playback is unsupported on your device Media caption Drone footage of the collapsed Waterside pub in Summerseat

Heavy rain has caused more flooding in northern England, with homes evacuated in Lancashire and Yorkshire, and rivers overflowing in Manchester and Leeds.

Vulnerable people are being evacuated from 2,200 homes in York, where people in 3,500 properties near the River Foss have been advised to be ready to leave.

Six severe flood warnings - indicating a danger to life - are in place.

Met Office warnings of further rainfall are in place for northern England, Scotland and Wales.

In total, hundreds of flood alerts and warnings have been issued - more than 30 of them severe.

Prime Minister David Cameron tweeted: "My thoughts are with people whose homes have been flooded.

"I'll chair a COBRA [emergency committee] call [on Sunday] to ensure everything is being done to help."

In pictures: North of England flooding

The River Irwell and River Roch have both overflowed, causing flooding in Salford, Manchester city centre and Rochdale.

Roads in central Leeds, where a severe warning is in place on the River Aire, are also under water.

Rest centres

Red Cross volunteers are working in three rest centres in Chorley, Salford and Bury. A spokeswoman said there were more than 50 people at the centre in Bury.

In York, people in the most-at-risk properties near the River Foss, a tributary of the River Ouse, have been advised by the Environment Agency to move valuable belongings upstairs and to prepare to be evacuated.

BBC north of England correspondent Danny Savage said on Saturday: "Everywhere I have been in Yorkshire today, whether people have lived there for 15 or 50 years, they have said the same thing to me - in their lifetime, they have never seen flooding like this."

BBC Weather forecaster Alex Deakin said the heavy rain would move southwards after midnight, leaving drier conditions in northern England.

While there would be more rain in the north during Sunday, it would not be as intense or prolonged as the downpours on Saturday, he added.

In other developments on Saturday:

Two Met Office red warnings for rain were issued for parts of Lancashire and Yorkshire, but they have now expired

There are seven severe flood warnings in Lancashire - meaning flooding is expected and there is a danger to life - and 24 in Yorkshire

Houses in Mytholmroyd, West Yorkshire, and in Ribchester and Whalley, Lancashire, were evacuated after rivers burst their banks

Electricity North West has warned power may not be restored to some homes until Monday. It said there were 8,100 properties across north-west England without power

Soldiers, who were deployed to Cumbria on Christmas Eve, have been helping residents in Lancashire

Every river in Lancashire exceeded record levels, the Environment Agency said

There were diversions on the M62 after it was closed westbound between junction 20 at Rochdale and junction 19 at Middleton when a large hole appeared in the carriageway as result of rain

A 200-year-old former pub located on a bridge over the River Irwell was destroyed by flooding at Summerseat, Greater Manchester

The Scottish Environment Protection Agency has issued more than 10 flood warnings, in the Scottish borders and Tayside areas, as well as a number of flood alerts

Emergency services including Lancashire Fire and Rescue Service and North Wales Police are warning motorists not to drive unless they need to, with some roads closed

Image copyright Iain Calvin Legowo Image caption The River Irwell flooded in the centre of Manchester near the Calatrava Bridge

Image copyright Getty Images Image caption Residents battled against floodwater after the River Calder bursts its banks in Mytholmroyd, West Yorkshire

Lancashire Fire and Rescue Service tweeted: "A severe flood warning means danger to life.

"It doesn't mean 'come and have a look'! Please don't come to visit Whalley or Ribchester now."

Ribchester resident Alan Tomlinson told the BBC the situation was "pretty grim" with many homes at risk of flooding.

"The village is under siege really," he said.

"The routes to the south are cut off and the route to the north, to Longridge, is under threat."

Kellie Hughes, a hairdresser who lives in Whalley, said the situation was "a million times worse" than a fortnight ago when floods also hit.

She said: "It's just horrific, really bad. I've got the sandbags down here and just doing the best I possibly can.

"There are no more sandbags anywhere. People are panicking. That's my business and my home, it's a double whammy."

Image copyright Getty Images Image caption Mytholmroyd was left under water

Image caption A gas main was seen burning on the edge of the River Irwell in Radcliffe, Greater Manchester

The government's emergency committee, Cobra, met for a second day in a row.

Environment Secretary Elizabeth Truss, who announced a review of flood defences earlier this month, said the priority "continues to be protecting lives, protecting homes and protecting businesses".

Friends of the Earth climate campaigner Guy Shrubsole said the record rainfall and repeated flooding in December were a sign of changing climate and highlighted the need for greater action by the government.

Local Government Association environment spokesman Peter Box said councils were "pulling out all the stops" to find accommodation for those forced to leave their homes amid flooding.

"Storms in Cumbria and Lancashire have reminded us just how unforgiving and formidable nature can be but councils in the regions have worked hard to try and minimise the impact on residents," he added.

Image caption People were rescued from a house in Baildon, West Yorkshire

Image copyright Getty Images Image caption People carried their possessions through flooded street in Mytholmroyd, West Yorkshire

Image copyright PA Image caption A caravan park in Knaresborough was covered in water after the River Nidd burst its banks

Flooding has brought travel "chaos" to roads in north Wales, with people rescued from cars and vehicles left stranded.

Capel Curig in north-west Wales had the most rainfall in the 24-hour period to 09:00 GMT Boxing Day, with a total of 168mm (6.6in).

Met Office forecasters had said up to 120mm (5in) of rain could fall over the most exposed sites in northern England on Boxing Day - with the average rainfall for the whole of December in the North West being 145mm (6in).

People can access information from council websites and the Environment Agency Floodline.

The agency is also operating a phone line - 0345 988 1188 - which will be staffed rather than offering recorded information.

Live flood warnings from the Environment Agency and the Scottish Environment Protection Agency.

Note: the Scottish Environment Protection Agency display their flood alert data differently to the Environment Agency and Natural Resources Wales. While the Environment Agency and Natural Resources Wales highlights individual rivers only, in Scotland the entire region is coloured to indicate the level of alert. This map and flood alert data are supplied to the BBC by third parties. The BBC is not responsible for its accuracy and you use it at your own risk.

View the flood map by tapping on the image below