The BBC's Alan Johnson: "No indication yet as to what caused the accident"
At least 36 people have been killed in southern Italy when a coach plunged 30m (98ft) down a steep slope, Italian media report citing rescue services.
The coach hit several cars before coming off a flyover near the town of Avellino, in the Campania region.
At least 11 people have been injured, some of them seriously, the Italian news agency Ansa reported.
The coach was taking about 50 people, including children, back to Naples following a pilgrimage, reports say.
The cause of the accident is not clear.
TV footage showed smashed vehicles on the flyover and shrouded bodies lined up by the side of a road.
The driver of the coach is said to be among the dead.
"The situation is critical," leading fireman Pellegrino Iandolo told Italian television.
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"Our men are working to save as many lives as possible."
A police spokesman told the French news agency AFP that the number of victims could not yet be confirmed.
"We are still pulling people from the vehicle," he said.
He added that the Naples-Bari motorway had been closed to traffic because of the accident.
Reports say the bus smashed through a guardrail on the flyover. It came to rest in heavy undergrowth, which is hampering the rescue operation.
The injured are being taken to hospitals in Avellino, Salerno and Nola, Ansa said.
bbc.com
