Gardaí have launched an investigation into an assault of a woman at a DART station last month.
The incident was captured on video and shows a woman being physically intimidated by a group of teens before falling between the platform and the train.
The now viral video dates back to the start of April and shows a woman making her way down the platform at Howth Junction.
A teenage boy blocked her way with his bike and, in an attempt to dodge him, she fell between the platform and the train.
General Secretary of the National Buses and Rail Union Dermot O’Leary says a dedicated Garda division is needed to handle anti social behavior.
Gardaí say investigations are ongoing but no arrests have been made.
Reporting by Mairead Cleary