Updated: 09.25

A pedestrian has been seriously injured in a crash in north Dublin.

Gardaí say the serious road traffic collision happened in Drumcondra at around 4.10am Wednesday morning.

A 19-year-old male pedestrian was struck by a car on Drumcondra Road Upper between the junctions of Griffith Avenue and Homefarm Road.

The man was taken by ambulance to the Mater Hospital, where his injuries are described as critical.

The male driver of the car was uninjured.

Part of Dorset St/Swords Rd closed after serious injury to a pedestrian. Will be closed for 2 hours or so, plan for it in your commute pic.twitter.com/5LuUKQPGvE

— Sean Defoe (@SeanDefoe) October 25, 2017

The Drumconda Road was closed in both directions for a time, but has since fully re-opened.

Witness to the collision are asked to contact the gardaí in Santry on 01-666-4000, the Garda Confidential line at 1800-666-111 or any garda station.