Donegal County Council has confirmed that Lifford Bridge is currently closed to traffic and motorists are advised to avoid the area.
The PSNI are dealing with a collision on the Strabane side of the Lifford bridge.
As a result, traffic is being diverted via Castlefin and Derry.
Gardai are advising motorists to avoid Clady as there are major delays through the narrow streets in the village.
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