Updated 5.46pm

grid1 The scene at the approach to the M50 merge today.

THE M11 HAS reopened after a crash caused traffic chaos in the area.

A motorcyclist is believed to have been seriously injured.

Significant traffic problems were reported in south Dublin and north Co Wicklow following the collision between junctions 16 and 17 of the M50.

Gardaí closed an entire northbound section of the Wexford-Dublin road before the M50 merge as a result.

The motorway reopened as planned this afternoon at 4pm, and after some initial delays traffic is said to be moving well.

M50 reopened. Collision on M50 Nthbound betwn J17(M50/M11 Interchange) & J16 (Cherrywood) has now been cleared. No further delays expected.
— An Garda Síochána (@GardaTraffic) May 28, 2015

An Garda Síochána / Twitter

M11 UPDATE: Traffic on the M11 itself is moving well n/bound. Remains v slow through Bray, Enniskerry & Kilternan. http://t.co/qvBPcgxUj8
— AA Ireland (@aaroadwatch) May 28, 2015

AA Roadwatch / Twitter

grid2 A southbound view from the same reader.

The collision caused significant knock-on traffic problems in the surrounding area – with motorists reporting that Bray Main St and Florence Road were inaccessible.

So I'm half hour now in traffic jam Main St Bray. Loughlinstown N11 exit closed. Hope those in crash okay.
— Oonagh O'Farrell (@oonthoughts) May 28, 2015

Oonagh O'Farrell / Twitter

Originally published 1.28pm. Additional reporting by Nicky Ryan.

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