A section of the M1 that had been closed following a six-vehicle crash has fully re-opened.
Motorists had been urged to find alternative routes.
Earlier, in a statement, police said: "The M1 Eastbound between Lurgan and Moira is currently closed due to a multi-vehicle road traffic collision.
"Road users are asked to avoid the area if possible."
Trafficwatch NI posted: "Six-vehicle vehicle road traffic collision M1 citybound J10 Lurgan to J9 Moira.
"Police arriving shortly. M1 will need to be closed - advice find an alternative route."
In an update, police said: "The M1 has now fully re-opened following an earlier road traffic collision. Delays are still to be expected."
There are no reports of any injuries at this time.
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