Dissident republicans are being blamed for an early morning bomb attack at a golf club in County Armagh.
Army bomb experts were called to the golf club
The device, which is believed to have contained about 70lbs of explosives damaged windows and drainpipes at the Lurgan clubhouse.
The police said the bomb appeared to be an improvised device.
The explosion happened shortly before 0230 BST on Monday.
Army bomb disposal officers are at the scene.
No-one was injured in the blast.
Dissident republicans are opposed to the Good Friday Agreement and the political process in Northern Ireland.
Ulster Unionist assembly member for Upper Bann, Samuel Gardiner, said lives would have been lost if the bomb had gone off during the day.
"The suggestion made is that it is the dissident IRA - that's my information," he said.
"Lives definitely would have been lost if that had gone off through the day because golfers would have been there either getting into a car or getting out of a car."
Muriel Sharpe, secretary-manager of the golf club, said the damage was centred around the professional's shop.
"The golf club is close to housing and the park runs alongside it," she said.
"There is a road which has been closed off to traffic since the Troubles and hasn't been reopened, but it is used very frequently by people getting access to and from the shops and back to their houses."