Gardaí are investigating a fatal single vehicle road traffic incident that occurred at approximately 10:30am on Monday, 19th July in the Lough Ennell area of Mullingar, County Westmeath.
An occupant of the vehicle involved, a man in his 20s, was taken to Tallaght Hospital in a critical condition.
He has since passed away.
The driver of the car, a man in his late teens, was arrested at the scene for road traffic offences. He has since been released without charge and a file will be prepared for the Director of Public Prosecutions.
Gardaí in in Mullingar are appealing for anyone who was in the Tudenham Park and Lough Ennell areas between 10:00am and 11:00am on the 19th of July and has any information or footage (including dash cam) to come forward. Anyone with information can contact Mullingar Garda Station on 044 9384000 or the Garda confidential line on 1800 666 111.