An aerial view shows a derailed train at the station of Pioltello Limito, on the outskirts of Milan, Italy, Thursday, Jan. 25, 2018. Carabinieri say a commuter train carrying hundreds of people has derailed in northern Italy, killing at least two people and seriously injuring at least 10. (Italian Firefighters Vigili del Fuoco via AP)
Firefighters help a woman out of the wagon of a derailed train at the station of Pioltello Limito, on the outskirts of Milan, Italy, Thursday, Jan. 25, 2018. Carabinieri say a commuter train carrying hundreds of people has derailed in northern Italy, killing at least two people and seriously injuring at least 10. (Flavio Lo Scalzo/ANSA via AP)
A police officer keeps back members of the media as a train passenger is taken away on a stretcher after a train derailed, in Pioltello Limito, on the outskirts of Milan, Italy, Thursday, Jan. 25, 2018. Carabinieri say a commuter train carrying hundreds of people has derailed in northern Italy, killing at least two people and seriously injuring at least 10. (AP Photo/Luca Bruno)
A passenger on a stretcher talks to a woman after being rescued from a derailed train, in Pioltello Limito, on the outskirts of Milan, Italy, Thursday, Jan. 25, 2018. A commuter train derailed Thursday in northern Italy, killing at least two people, seriously injuring 10 and trapping others heading into the city of Milan at the start of the work day, carabinieri police said. (AP Photo/Luca Bruno)
This image provided by the Italian firefighters Vigili del Fuoco shows firefighters inside a train wagon trying to help a passenger out after the train derailed at the station of Pioltello Limito, on the outskirts of Milan, Italy, Thursday, Jan. 25, 2018. Carabinieri say a commuter train carrying hundreds of people has derailed in northern Italy, killing at least two people and seriously injuring at least 10. (Italian Firefighters Vigili del Fuoco via AP)
An injured passenger is taken away on a stretcher after a train derailed at the station of Pioltello Limito, on the outskirts of Milan, Italy, Thursday, Jan. 25, 2018. Carabinieri say a commuter train carrying hundreds of people has derailed in northern Italy, killing at least two people and seriously injuring at least 10. (Flavio Lo Scalzo/ANSA via AP)
An injured passenger on a stretcher is carried away after a train derailed at the station of Pioltello Limito, on the outskirts of Milan, Italy, Thursday, Jan. 25, 2018. Carabinieri say a commuter train carrying hundreds of people has derailed in northern Italy, killing at least two people and seriously injuring at least 10. (AP Photo/Luca Bruno)
Firefighters help a woman out of the wagon of a derailed train at the station of Pioltello Limito, on the outskirts of Milan, Italy, Thursday, Jan. 25, 2018. Carabinieri say a commuter train carrying hundreds of people has derailed in northern Italy, killing at least two people and seriously injuring at least 10. (Flavio Lo Scalzo/ANSA via AP)
Rescue teams help passenger out of a derailed train at the station of Pioltello Limito, on the outskirts of Milan, Italy, Thursday, Jan. 25, 2018. Carabinieri say a commuter train carrying hundreds of people has derailed in northern Italy, killing at least two people and seriously injuring at least 10. (Flavio Loscalzo/ANSA via AP)
An injured passenger is taken away on a stretcher after a train, seen in the background, derailed at the station of Pioltello Limito, on the outskirts of Milan, Italy, Thursday, Jan. 25, 2018. Carabinieri say a commuter train carrying hundreds of people has derailed in northern Italy, killing at least two people and seriously injuring at least 10. (AP Photo/Luca Bruno)
Rescue teams work on a derailed train at the station of Pioltello Limito, on the outskirts of Milan, Italy, Thursday, Jan. 25, 2018. Carabinieri say a commuter train carrying hundreds of people has derailed in northern Italy, killing at least two people and seriously injuring at least 10. (Flavio Lo Scalzo/ANSA via AP)
An injured passenger is assisted after a train derailed at the station of Pioltello Limito, on the outskirts of Milan, Italy, Thursday, Jan. 25, 2018. Carabinieri say a commuter train carrying hundreds of people has derailed in northern Italy, killing at least two people and seriously injuring at least 10. (AP Photo/Luca Bruno)