A helicopter with night-vision equipment has joined the search for a hunter missing in the Blue Mountains near Clydevale.
Tracking efforts this afternoon have found "footprints of interest" as police and LandSAR teams scour the area.
Police say they understand the missing man has a lighter with him and searchers hope this will be picked up by the night-vision equipment.
He has also fired shots from his rifle, narrowing down the search area.
The man went out hunting with a small group yesterday. His companions returned about 2pm but the man remained in the bush.
Police were alerted about 11am today.
They say the man had "basic hunting hear" but was not prepared for a night in cold conditions.
The search will continue throughout the night.
