Army is deployed in France and rescue teams hunt for survivors in after ...

The army has been deployed in France and rescue teams are hunting for survivors in after torrential rain and winds from Storm Alex left two dead and 20 missing. 

Breil-sur-Roya, a French village close to the Italian border, was a scene of devastation with houses buried in mud and turned-over cars stuck in the riverbed.

In northwestern the 'historic' flooding destroyed a section of a bridge over the Sesia river. 

French Prime Minister Jean Castex has deployed the army as 20 people on his side of the border remain unaccounted for after the flash floods washed away houses and triggered landslides.

A pile of vehicles on a street in Breil-sur-Roya, south-eastern France, on Sunday after extensive flooding caused widespread damage in the Alpes-Maritimes departement

A pile of vehicles on a street in Breil-sur-Roya, south-eastern France, on Sunday after extensive flooding caused widespread damage in the Alpes-Maritimes departement

A partially submerged hatchback in mud and debris in Breil-sur-Roya, south-eastern France on Sunday

A partially submerged hatchback in mud and debris in Breil-sur-Roya, south-eastern France on Sunday

People arrive at Nice airport after being rescued by the 'Armee de Terre' from floods in the south of France on Sunday

People arrive at Nice airport after being rescued by the 'Armee de Terre' from floods in the south of France on Sunday

A worker digs out a vehicle from mud on a street in Breil-sur-Roya, south-eastern France, on October 4, 2020, after extensive flooding caused widespread damage in the Alpes-Maritimes departement

A worker digs out a vehicle from mud on a street in Breil-sur-Roya, south-eastern France, on October 4, 2020, after extensive flooding caused widespread damage in the Alpes-Maritimes departement

People walk across washed-up tree branches after Storm Alex swept through Europe, causing damage to many areas in France and Italy

People walk across washed-up tree branches after Storm Alex swept through Europe, causing damage to many areas in France and

Residents clean a shop following a mudslide on October 4, 2020 in Garessio, Piedmont, after storms lashed the region. Two people died after storms lashed southern France and northern Italy, with roads and bridges damaged or destroyed and thousands left without power

Residents clean a shop following a mudslide on October 4, 2020 in Garessio, Piedmont, after storms lashed the region. Two people died after storms lashed southern France and northern , with roads and bridges damaged or destroyed and thousands left without power

A man walks past a pile of vehicles on a street in Breil-sur-Roya, south-eastern France

A man walks past a pile of vehicles on a street in Breil-sur-Roya, south-eastern France

An army helicopter carried residents from Saint-Martin-de-Vesubie from the affected areas on Sunday after the extensive flooding

An army helicopter carried residents from Saint-Martin-de-Vesubie from the affected areas on Sunday after the extensive flooding

'There are very many people of whom we have no news,' Castex said. 

On the Italian side of the border several villages were also still cut off, and many roads blocked.

A 53-year-old firefighter died during a rescue mission in the Aosta Valley, and a 36-year-old man died after his car was swept away by a river in Piedmont.

French rescue efforts were concentrated on the Roya valley where around 1,000 firefighters backed up by helicopters and army units resumed their search hoping to find survivors, and giving assistance to people whose homes were destroyed or inaccessible.

A gendarme stands near a vehicle partially submerged in mud in Breil-sur-Roya, south-eastern France

A gendarme stands near a vehicle partially submerged in mud in Breil-sur-Roya, south-eastern France

Tourists have a drink while sitting at the table of flooded street cafe in Riva dell'Erbaria in Rialto, while the waters of the canal rise, in Venice, Italy

Tourists have a drink while sitting at the table of flooded street cafe in Riva dell'Erbaria in Rialto, while the waters of the canal rise, in Venice,

This general view shows a partially submerged vehicle in mud in Breil-sur-Roya, south-eastern France

This general view shows a partially submerged vehicle in mud in Breil-sur-Roya, south-eastern France

People stand near a car partially submerged in mud in Breil-sur-Roya, south-eastern France, on October 4, 2020 villages and triggering landslips. (Photo by NICOLAS TUCAT / AFP) (Photo by NICOLAS TUCAT/AFP via Getty Images)

People stand near a car partially submerged in mud in Breil-sur-Roya, south-eastern France, on October 4, 2020 villages and triggering landslips. (Photo by NICOLAS TUCAT / AFP) (Photo by NICOLAS TUCAT/AFP via Getty Images)

A worker looks at a mud covered street in Breil-sur-Roya, south-eastern France, on October 4

A worker looks at a mud covered street in Breil-sur-Roya, south-eastern France, on October 4

Storm Alex barrelled into France's west coast on Thursday bringing powerful winds and rain across the country before moving into , where regions across the north suffered an onslaught on Saturday.

'What we are going through is extraordinary,' the prefect of the Alpes-Maritimes region said Bernard Gonzalez.

'We are used to seeing images of such disasters on other continents, sometimes with a lack of concern, but this here is something that affects us all,' he said.

France has declared the region a natural disaster zone. 

A gendarme stands amongst debris including vehicles in Breil-sur-Roya, south-eastern France

A gendarme stands amongst debris including vehicles in Breil-sur-Roya, south-eastern France

Residents look at a mud covered street in Breil-sur-Roya, south-eastern France, on October 4

Residents look at a mud covered street in Breil-sur-Roya, south-eastern France, on October 4

A resident looks at a mud covered street in Breil-sur-Roya, south-eastern France

A resident looks at a mud covered street in Breil-sur-Roya, south-eastern France

Local authorities gave shelter to some 200 people overnight, while food and thousands of bottles of water were being airlifted into remote villages cut off by the storms.

Gonzalez called on the families of the missing people not to give up hope.

'Just because their loved ones haven't been able to get in touch doesn't mean that they have been taken by the storm,' he said.

Residents clear a street following a mudslide on October 4, 2020 in Garessio, Piedmont, after storms lashed the region

Residents clear a street following a mudslide on October 4, 2020 in Garessio, Piedmont, after storms lashed the region

Residents clean a street following a mudslide on October 4, 2020 in Garessio, Piedmont

Residents clean a street following a mudslide on October 4, 2020 in Garessio, Piedmont

A soldier carries packs of bottled water for residents in Breil-sur-Roya, south-eastern France

A soldier carries packs of bottled water for residents in Breil-sur-Roya, south-eastern France

sonos sonos One (Gen 2) - Voice Controlled Smart Speaker with Amazon Alexa Built-in - Black read more

A police officer walks amongst vehicules submerged in mud in Breil-sur-Roya, south-eastern France

A police officer walks amongst vehicules submerged in mud in Breil-sur-Roya, south-eastern France

The shore area of Locarno is under water after the water level of Lake Maggiore rose to 195.47 meters due to the heavy rainfalls of the last few days, in Locarno, Switzerland

The shore area of Locarno is under water after the water level of Lake Maggiore rose to 195.47 meters due to the heavy rainfalls of the last few

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