This footage shows a gang of youths jumping from Custom House Bridge into the Liffey.
Around 3:30pm on Thursday afternoon, the young swimmers trespassed onto the railway line adjacent to Tara Street Station at great risk to their own safety.
The incident also caused chaos for Irish rail drivers and passengers alike as trains were delayed by 10 to 15 minutes as trains proceeded with great caution until the line was clear.
Irish rail staff now regularly patrol the platform to prevent incidents like this happening again.
Gardaí were called to the scene after the teens were seen trespassing onto the train tracks and jumping off the bridge, as depicted in footage shared by Panti Bliss.
A spokesman from Irish Rail said: “This occurred at Custom House Bridge adjacent to Tara Street Station on earlier (15:25hrs approximately).
“Gardaí and our own infrastructure team were alerted after a group of youths trespassed on the line to jump into the Liffey.
“Trains were delayed by 10 to 15 minutes as a result, as we operated at extreme caution through the area until the line was cleared.
“Obviously this is extraordinarily reckless, and as well as delaying services, those involved place themselves in extreme danger.
“Staff patrolled the platform to prevent further instances, and do so regularly during the day at the station.”
A garda spokeswoman said: "I refer to your query and can advise Gardaí did attend the incident at approximately 3.35p.m.this afternoon Thursday 15th July, 2021 at Custom House Bridge.
"A number of youths were jumping from the bridge into the water and trains were delayed as a result.
"Youths had dispersed upon arrival of Gardaí."
Panti Bliss posted the footage on Twitter.
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