Philippine authorities who have declared a no-go zone around an erupting volcano said Thursday they will remove all holdouts, by force if necessary, to avoid casualties after tens of thousands of other residents fled to safety. President Rodrigo Duterte will visit the residents affected by the rumbling Mayon Volcano after attending the Association of Southeast Asian Nations – India Commemorative Summit. Presidential spokesman Harry Roque could not say when exactly the visit would be saying it would depend on the conditions in Legazpi City. More than 40,000 people have already fled since smoke and ash started spewing from the mountain on Tuesday as showering debris turned morning skies dark and spread fear among anxious residents.