One person has died and 11 others are listed as missing Saturday after severe flooding across northern Italy, officials said following torrential overnight rain.

People view the Rialto bridge in Venice on October 3, 2020 as a high tide "Alta Acqua" phenomenon is expected, following a peak of water following bad weather and potential intense sirocco winds along the entire Adriatic basin. (Photo: AFP)

Civil protection officials said a volunteer firefighter died at Val d'Aoste during a rescue operation while regional authorities reported 11 people as missing in the Piedmont region where several villages were cut off.