“Lads, if I say ‘train,’ go down there, right?” can be heard in a short video recorded on the mobile telephone of one of the victims shortly before the disaster on the night of August 30, according to Tg1.
Some of the workers can be seen at work in the video.
The two survivors of the accident, the foreman of the team of workers employed by a contractor and the Italian rail company RFI employee responsible for the worksite, have been put under investigation.
Investigators are trying to work out why work was allowed to begin before there was confirmation that traffic on the line had been halted.
Sources say investigators believe work started even though the RFI employee was denied the all-clear for it to begin in three phone calls with network officials.
The investigators are also trying to work out whether the fact the men were at work without the all-clear to start was a one-off thing, or whether it is something that happens frequently in such operations.
ANSA