One person has been killed and dozens injured in a collision between two metro trains at Rome's Piazza Vittorio Emanuele II station.
Temporary hospitals on the nearby square dealt with the injured.
Passengers said the crash happened when one train arriving at the station crashed into the back of another.
Dust and smoke made rescue efforts difficult, with the station's ceiling collapsing on top of the two trains.
The two trains involved were on metro line A, one stop away from the city's central Termini rail station.
Passengers were dazed and bloodied, and some were in a state of shock.
Witnesses described harrowing scenes in the trains, with people sprawled on the floor screaming for help.