A security alert in Armagh is causing severe disruption to traffic in both directions between Newry and Dundalk this afternoon.
A PSNI spokesperson said the alert was in place on the M1, south of Newry.
Gardaí have closed the road on southern side of the border and motorists travelling between Newry and Dundalk have been warned of significant delays.
Dublin-bound trraffic is being diverted to old Dublin road at Newry and traffic is being directed off the M1 northbound at J20 Jonesborough until further notice.
Traffic is directed along the over pass and onto the old N1.
