Emergency services are responding to reports of a landslide at Wentworth Falls in the Blue Mountains.
About 11.40am, emergency services were called to the Wentworth Falls Walk at Wentworth Falls, after reports a number of people had been injured.
Due to the remote location of the landslide it took rescuers some time to reach the site.
At this stage, one person has died and three others are injured.
A command post has been established at the end of Falls Road and several emergency services including officers from Blue Mountains Local Area Command, Blue Mountains police rescue, Polair, NSW Ambulance, Fire & Rescue NSW, and National Parks & Wildlife Service have responded.
Members of the public are asked to avoid the area.
No further information is available at this stage.