254 people have died in a devastating flood in Colombia

Rescuers pulled survivors from the debris of homes washed away by the flood waters

More than 254 people have died and hundreds more are injured after what's being described as a "water avalanche" in Colombia.

The floods hits the city of Mocoa in the south of the country. 

Torrential rain has sent mud and water from three rivers flowing through the streets, destroying homes and ripping trees from their roots.

The country's president Juan Manuel Santos has declared a state of emergency.

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