Clouds of steam and ash rose from the Mayon volcano after pyroclastic flows rolled down its flanks on Tuesday, January 16, in the latest volcanic activity that has seen thousands evacuated from nearby homes in the Philippine region of Bicol.The Philippine Institute of Volcanology and Seismology shared footage of one of the pyroclastic flows on Tuesday following a series of tremors and dramatic emissions of lava overnight. The Sun Star said around 15,000 people had been evacuated from communities within a 4.5-mile radius of the volcano. Credit: Instagram/Ian Giles via Storyful