New Delhi: Mount Kanlaon in Negros Island of Philippines erupted on Saturday morning.

The Philippine Institute of Volcanology and Seismology (Phivolcs) said the eruption occurred at 9:19 am. It was steam-driven or phreatic, the result of magma heating ground or surface water.

“The local government units and the public are reminded that entry into the 4-kilometer radius Permanent Danger Zone (PDZ) is strictly prohibited due to the further possibilities of sudden and hazardous steam-driven or minor ash eruptions,” said Phivolcs in a notification.

The agency also alerted civil aviation authorities to advise pilots to avoid flying close to the volcano’s summit as airborne ash from a sudden eruption can be hazardous to aircraft.

People living within valleys and along river/stream channels especially on the southwest and northwest sector of the edifice were told to be vigilant against sediment-laden stream flows and lahars in the event of heavy and prolonged rainfall.