People in Rabaul in Papua New Guinea's East New Britain province are being asked to stay indoors or leave town after nearby Mt Tavurvur began erupting in the early hours of Friday morning.
The Rabaul Volcano Observatory says the volcanic activity has started to subside, although more explosions can be expected.
A resident in nearby Kokopo, Francis Bakare, says the volcano has thrown up a lot of dust and rocks which the wind is carrying over Rabaul township.
He says a lot of crops near the volcano have been destroyed.
"They've asked them to move out from Rabaul town to Kokopo and other places to other places where it's safe for them. Right now, it's still making a lot of noise."
A resident in Kokopo, Francis Bakare.