Emergency services are currently conducting a large-scale operation in Moy this afternoon.
The area around the River Blackwater, at the Charlemont Bridge, has been cordoned off after reports of a woman in the water.
There are unconfirmed reports that a young woman may have entered the water earlier this morning (Thursday).
The search is on-going.
Eye-witnesses have told Armagh I how police divers are entering the water, combing the riverbed.
There are no further details at this stage but this story will be updated as and when information becomes available.
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