Spike in railway risk-taking numbers
Translink is investigating up to 60 instances of people trespassing on rail tracks in south Belfast since the start of the summer.
While youths and the good weather are being blamed for the dramatic spike in numbers illegally crossing tracks on the line between Central Station and Lisburn, Translink is also investigating a larger number of adult cases and even one involving a senior citizen.
Instances include a group of up to five children aged around 12 years-old running in the track at Finaghy and three children playing at a Dunmurry station close to the tracks.
Translink spokesperson Lynda Shannon said: "When you take into consideration that the fastest man in the world at last summer's Olympics, Usain Bolt, can cover just over 10 metres per second, while one of our trains travelling at 90 miles per hour covers 40 metres per second, it's clear that when it comes to man versus train, there's no contest.
South Belfast MP Alasdair McDonnell warned constituents of the dangers. "It seems people might be using the rail lines as a shortcut... Put simply, it's not worth the risk," he said.