Two people were killed and around 1,500 others were forced to evacuation after violent torrential rains struck central and southern Italy on Monday, media reports said.
A 30-year-old man was swept away by a giant wave while he was fishing with a friend at the mouth of a river near the southern city of Cosenza. The other man was injured.
In central Italy, a 57-year-old woman was found dead in her flooded car in an underpass on the outskirts of Pescara after her husband had searched her for several hours.
Around 1,500 people were evacuated from the city amid severe alerts of an overflowing river that was threatening their homes, according to ANSA news agency.
Meanwhile, two people were reported as seriously injured after their train derailed near Foggia, another city in southern Italy, due to bad weather.
The country's national rail service announced the temporary suspension of the lines running along the eastern Adriatic coast due to the dangerous flooding in parts of the area.
Torrential rains and landslides caused major traffic disruptions across parts of central and southern Italy, where many schools remained closed.
On Sunday, strong winds toppled trees in Rome. A pine fell across a highway and killed a 42-year-old motorcyclist, local media reported.
Bad weather was also partially responsible for the latest damage at the UNESCO World Heritage Site of Pompei, just east of Naples in southern Campania region. The wall of an ancient shop crumbled and plaster fell from the wall of a house.
Rough seas prevented local coast guard from rescuing 142 migrants adrift off the southeast coast of Italy until late Monday, when the asylum seekers were transferred onto two rescue boats en route to the mainland.
Only days ago, an extraordinary wave of bad weather claimed 16 lives and one missing person in the western island of Sardinia.
Local analysts have argued that many deaths and such a huge damage could have been avoided, blaming the government for building too much in areas exposed to floods and landslides.