Volcanic activity on Mount Yasur on Tanna Island in Vanuatu, which has been erupting for hundreds of years, has intensified.
The Vanuatu Geohazards Observatory has raised its warning regarding Yasur to level two, with expectations of ash and rock falls around the mountain.
The volcano reached a level three rating last year, but Vanuatu Geohazards Observatory manager Esline Garaebiti says a threat of that extent is unlikely.
However she says people still need to stay clear of the mountain.
"This volcano is quite special and the activity is so strong that we maintain it in level two for quite some time and if the explosions are becoming very strong and the projections go further out from the parking area then we will raise the level to level three."
The manager of Vanuatu's Geohazards Observatory Esline Garaebiti.