Gyproc has said a new crownhole has been discovered at its site in Magheracloone.
The company says an initial inspection on Friday highlighted a “surface feature” in the Drumgossett area, which further inspections confirmed as a crownhole.
Gyproc says this crownhole is wholly within lands it owns and is not close to any homes, public infrastructure or roads.
It says the hole is 280 metres north of the R179 Carrickmacross-Kingscourt road and it’s confident it poses no risk to the public.
A fence will be put in place to prevent access.
Meanwhile, the LP4900 road remains closed after a separate crownhole opened in the area in December.
A decision on whether the road can reopen will be made shortly, with the Monaghan County Council insurers reviewing reports on the road.