Pictures: UK hit by 'Storm Dennis', 'life-threatening' floods

Submerged vehicles after flooding in Nantgarw, Wales as Storm Dennis hit the UK. Storm Dennis swept across Britain on Sunday with the army drafted in to help deal with heavy flooding and high winds, officials warning it could be "life-threatening" in South Wales.

A member of the public is rescued after flooding in Nantgarw, Wales. Almost 200 flood warnings were in place early on Sunday, extending from Scotland's River Tweed to Cornwall in southwest England.

Cars sit submerged in flood water after the River Taff burst its banks in Nantgarw, south of Ponypridd in south Wales. Hundreds of flights were cancelled due to the high winds while train services were repeatedly disrupted by flooding.

People struggle with umbrellas as they walk across Millennium Bridge during storm Dennis in London. The travel chaos affected tens of thousands of passengers on a key weekend for British families as schools closed for the mid-winter break.

Flood water surrounds houses after the River Taff burst its banks in Taffs Wells, north of Cardiff, in south Wales. British Airways and easyJet confirmed they had grounded flights, while two bodies were pulled from rough seas off the south England coast on Saturday as the storm barrelled in.

Members of the 4th Battalion Royal Regiment of Scotland erect flood barricades in Ilkley, West Yorkshire.

A member of the public is rescued after flooding in Nantgarw, Wales.

Powerful waves break on the shoreline around the small port of Porthleven, south west England.

Emergency workers put barricades in place in York, North Yorkshire, as Storm Dennis sweeps in.

Flood water surrounds the bowling club after the River Taff burst its banks in Taffs Wells, north of Cardiff in south Wales.

Soldiers from The Highlanders, 4th Battalion, the Royal Regiment of Scotland in Mytholmroyd to assist with flood defences, in the Upper Calder Valley in West Yorkshire.

The level of the River Ouse rises in York, North Yorkshire as Storm Dennis sweeps in.

Members of the emegergency services evacuate residents from flooded house by boat after the River Taff burst its banks in Nantgarw, south of Ponypridd in south Wales .

Members of the 4th Battalion Royal Regiment of Scotland erect flood barricades in Ilkley, West Yorkshire.

Cars sit submerged in flood water after the River Taff burst its banks in Nantgarw, south of Ponypridd in south Wales.

Flood water surrounds the bowling club after the River Taff burst its banks in Taffs Wells, north of Cardiff in south Wales.

An Ambulance stands submerged in flood water after the River Taff burst its banks in Nantgarw, south of Ponypridd in south Wales.

Soldiers from The Highlanders, 4th Battalion, the Royal Regiment of Scotland in Mytholmroyd to assist with flood defences, in the Upper Calder Valley in West Yorkshire.