Three people died Wednesday and nearly 100 people were hurt, including seven with life-threatening injuries, as a crowded commuter train derailed in the eastern outskirts of Milan.
Firefighters worked for hours on the scene to try to free passengers trapped in the debris, and all rescue operations were completed at around 10 a.m., the Fire Corp stated on Twitter.
The train was heading from Cremona into Milan's Garibaldi station.
Several carriages of a regional train came off the tracks at Pioltello Limito station early this morning (Thursday), Italian state-owned rail company Ferrovie dello Stato said.
The Italian broadcaster showed footage from the site, on which heavily damaged overturned train cars could be seen.
Local media quote officials as saying 4 people are confirmed dead and the number of injured could top 100.
A problem with the coupling between carriages is being investigated as a possible cause of the accident. The cause was not immediately clear.
One woman told the newspaper La Repubblica that her daughter had called her on her phone to say "Mummy, help, the train is derailing" as the accident happened. In 2016, 23 people were murdered when two trains crashed on a solitary track in an olive woods in Puglia, southeastern Italy.