"A man in one of the parked vehicles was taken to St Vincent's Hospital with non-life threatening injuries.
"The road remains closed at this time. A technical examination of the scene by Garda Forensic Collision Investigators is underway."
Gardaí are appealing for any witnesses to this collision to come forward.
Any road users who may have camera footage (including dash-cam) and were travelling in the area at the time are asked to make this footage available to investigating gardaí.
Anyone with any information is asked to contact Rathfarnham garda station on 01 666 6500, the Garda Confidential Line on 1800 666 111, or any garda station.
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