Traffic is 'at a standstill' on the M1 following collisions on both sides of the carriageway, it has been reported.
It is understood there have been crashes on each carriageway on the M1 between J10 Lurgan and J9 Moira.
This is causing long tailbacks and motorists are being warned to expect delays.
BBC NI Travel is reporting that there were five crashes on this stretch of road and although they have been cleared to the hard shoulder, there are major delays.
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