Bicol

The Bicol peninsula was worst-hit, where floodwaters chased people and their pets to the second storey of their homes.

The rains also triggered volcanic mudslides or lahar in villages surrounding Mount Mayon, an active volcano in Bicol.

Another low pressure area off Bicol could intensify into a tropical depression by the end of the week, Ms Claren said.

The storm, known locally as Kristine, had dumped one month's worth of rain over 24 hours in Bicol, Ana Claren, a forecaster at the state weather bureau in Manila, told BBC News.

It added air traffic services received an anonymous email about a threat to flights from Manila to Davao, Bicol and the tourist regions of Palawan and Cebu.