Emergency services are currently at the scene of a 'serious crash' in Co Derry.
They were called to the incident on Monday morning in Castledawson near Magherafelt.
Police Mid Ulster said: "The Castledawson Road roundabout in Magherafelt is closed due to a road traffic collision.
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"Motorists are advised to avoid the area and seek alternative routes for their journey."
Trafficwatch NI added that the PSNI, Northern Ireland Fire and Rescue Service and NI Ambulance Service are all at the scene of the "serious" crash.
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