A bus of the Gallo-Sais bus lines, which covers the Palermo-Sciacca route, overturned this evening along the state road 624, between Contessa Entellina and Sambuca di Sicilia.
There would be several injured.
Three ambulances and some fire brigade teams arrived on the scene.
Some passengers managed to get out of the vehicle and took their seats on another bus, also coming from Palermo, from which first aid left.
The causes of the accident are still unclear.
The area of the accident, where a violent storm struck in the afternoon, was also affected by an intense whirlwind.
The Palermo Sciacca expressway, the so-called Fondovalle where the bus overturned, is interrupted between Poggioreale and the Gulfa junction for Sambuca di Sicilia and Santa Margherita Belic, due to a river of water and mud that made the roadway impracticable.
"I witnessed terrible scenes - says a motorist - I saw an articulated lorry dragged away by the fury of the water. I could not stop because I too was in danger of being overwhelmed. A lot of water fell down. It is impossible to drive along the main road. . I urge everyone not to travel ".