Italian prosecutors have launched an investigation into possible manslaughter after a bus plunged off an overpass in Naples on Monday killing 38 people.
The probe will look into the role of the driver, as well as the state of the bus and the crash barrier the bus went through.
The bus was carrying 48 people, including children, and rammed several cars after failing to break on a bend, smashing through the crash barrier and off the viaduct to plunge 30 metres down.
The crash was the deadliest in western Europe in the last decade and the worst in Europe since an October 2010 accident in Ukraine that killed 45 people.
