A group of youths risked their lives by trespassing on the railway line near Dimsdale Road in Wishaw - prompting police to warn of the lethal danger of this kind of stupidity.
A short time later when the 16.21 Lanark to Glasgow service arrived at Motherwell station it was found that one of the windows had been broken – most likely by a stone thrown at it.
Now British Transport Police (BTP) are again warning of the illegal and potentially fatal consequences of trespassing on the railway.
Inspector Gary Brown, who is responsible for policing the railway in the area, said: “It is enormously worrying that children of school-age are putting themselves in grave danger by trespassing. “They seem to be oblivious to the risks that trespassing and playing near the railway presents and seriously endanger the safety of other rail users.
“The foolishness of their actions cannot be underestimated.
“The real dangers of trespassing have been highlighted by this incident and as well as being extremely dangerous and illegal there is the distinct possibility that services will be delayed as a consequence.
“Trespassers also need to be aware that there are 25,000 volts passing through overhead power lines, which is more than enough to kill. You don’t even need to touch the cables to be electrocuted as the electricity can arc up to several feet.”
BTP has already increased patrols in the area and officers will be visiting local schools to raise awareness of route crime and the dangers.
Inspector Brown is also asking parents to ensure they know the whereabouts of their children. He added: “Make sure your children are aware that the railway is an incredibly dangerous environment and remind them to stay away.
“Children may believe they can cross the tracks before a train comes, however, all it takes is for them to slip and they will not be able to get out of the way in time.
“They need to understand that what may seem to them as a shortcut may actually cut their life short.”
Anyone with information about criminal activity on the railway can contact British Transport Police on 0800 40 50 40 or by texting 61016.