The Arno river, which runs through Florence and Pisa, is prone to flooding in spring and fall. Read more at straitstimes.com.

Unusually severe flooding continued to keep the central Italian region of Tuscany on high alert on Saturday, with the situation in Pisa particularly worrying. The water level of the Arno is critically high in Pisa,

Italian authorities ordered dozens of people in Tuscany to leave their homes on Friday after heavy rains swelled rivers and flooded streets near the historic cities of Florence and Pisa. Regional chief Eugenio Giani said a red weather alert demanded that people should exercise "maximum care and attention" amid "intense and persistent rain.