The incident happened at around 3:55pm this afternoon
Gardaí at Terenure are appealing for witnesses following a serious road traffic collision which occurred on Friday.
It happened at the junction of Harold's Cross Road and Grove Road at around 3.55pm.
A male cyclist was struck by a lorry and was taken by ambulance to St James Hospital.
His injuries are described as serious and Gardaí are appealing for witnesses to contact them at Terenure Garda Station 01-666 6400, the Garda Confidential Line 1800 666 111 or any Garda Station.