Philippines authorities began evacuating people near Mount Mayon Friday as increasing activity indicates a violent eruption is possible. Photo: Kristin Moral/AFP via Getty Images ...

The Philippines raised the alert level at its most active volcano, Mount Mayon, on Monday after fresh ... of five because a hazardous and violent eruption is expected within days.

The Philippines raised the alert level for the country's most active volcano twice in 24 hours Sunday, meaning that a hazardous eruption is possible within days. A bright glow from Mayon volcano's ...