One lane has reopened after an early-morning crash on the M3/N3 Northbound between Junction 1 M50/M3 and Junction 2 Blanchardstown.
The incident happened just before 7am this morning and closed all lanes Northbound.
Lane one has since reopened, with emergency services are at the scene.
Drivers are being urged to take alternative route where possible, with traffic very heavy in the area.
An Garda Síochána said: “Gardaí and Emergency Services are at the scene of a three car road traffic collision that occurred on M50 between Junction 1 and 2 this morning at approximately 7.30am.
“One lane remains open at this time. No injuries have been reported. Investigations are ongoing.”
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Meanwhile, DART services were suspended through Lansdowne Road due to a vehicle hitting a bridge just before 9am this morning, according to Irish Rail.
The level crossing at Lansdowne Road was cleared around 9.15am. Services are resuming with delays of up to 25 minutes.
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More to follow…