Emergency services are currently dealing with an accident on the outskirts of Portadown town centre.
Police and ambulance crews are in attendance at the scene on the A3 Northway.
There are reports of long tailbacks out of the town in the direction of Armagh.
Traffic is also slow moving in the area.
It remains unclear how many vehicles are involved and if there are any injuries.
There are no further details at this stage.
#PORTADOWN: reports of a crash on Northway causing tailbacks for traffic coming from Armagh rd leading on to A3.
— BBCNI Travel (@BBCNITravel) October 6, 2017
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