One staff member is missing after going on a routine mission to check the water temperature of the lake.
We are monitoring the situation closely, with the safety of the staff being our top priority.
Two staff members on the island attempted to search the area where the missing person was thought to be but had to retreat due to further volcanic activity and the track being impassable with fallen trees and ash.
The crater is less active than Friday, with no cloud or ash plume, but it is still potentially volatile.
