MANILA, June 1 -- The Philippine National Police (PNP) has placed its disaster response units on alert and directed all concerned police offices in the Bicol Region to intensify preparedness measures following the latest activity at Mayon Volcano.

This came after the Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported on Sunday a pyroclastic density current (PDC) event, locally known as "uson," at Mayon Volcano, which remains under Alert Level 3, indicating heightened unrest and a high possibility of hazardous eruptions.

"Our police units in the area are aware of the situation and are always ready to respond for any eventuality based on past experiences and strong coordination with local government units and other ag...