At least three people have died as heavy rain over the weekend led to severe flooding in France and Italy.
An elevated (m) 100 ft) stretch of highway collapsed near the Italian city of Savona following a landslide.
The emergency left cars perching perilously close to the edge of the A6, which is several meters above the ground in the northwestern region of Liguria.
It is the same area where amotorway bridge collapsedlast year in Genoa, killing 43 people.
On Sunday, it was not known if any vehicles had plunged off the road along a viaduct about a mile outside Savona, linking it to Turin.
Elsewhere in Italy, a woman was found dead after the surging Bomida river swept away her car.
It has been raining, sometimes heavily, in much of Italy nearly every day for about two weeks, as rivers swell and streets flood.
In Turin, the Po river spilled over and flooded the medieval quarter as well as a popular riverside walking area.
Several rivers have also burst their banks in southeastern France, causing major damage as homes were flooded.
Trees, cars and boats were swept along by the sheer volume of water.
One person died when a rescue boat taking them and two others to shore sank near the town of Muy.
Another person was found dead in a car in the town of Cabasse.
And authorities were searching for two people missing in the floods, Nice mayor Christian Estrosi said.
French interior minister Christophe Castaner said more than 1, 600 people have been evacuated and parts of the country have absorbed two months of average rainfall in 24 Hours.