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Submerged cars are seen on a flooded street in San Gavino Monreale on Sardina island

Submerged cars are seen on a flooded street in San Gavino Monreale on Sardina island November 18, 2013. Italian authorities declared a state of emergency in Sardinia on Tuesday, a day after a cyclone struck the Mediterranean island, killing at least 16 people and leaving hundreds homeless. Overnight, Cyclone Cleopatra dropped 450 millimetres of rain in an hour and a half, causing rivers to burst their banks, sweeping away cars and flooding homes across the island. Picture taken November 18, 2013. REUTERS/Rosaspress (ITALY - Tags: DISASTER ENVIRONMENT)

Flash floods on the island of Sardinia

Italy declared a state of emergency on Tuesday after flash floods on the island of Sardinia left 17 people dead and forced hundreds to seek emergency shelter as the waters swept away bridges and flooded homes. (AFP)