People should stay indoors during a thunderstorm.
If you are outside, seek shelter in a building to avoid getting struck by lightning, said Mactan weather bureau chief Alfredo Quiblat.
“Stay away from water bodies like rivers, pools and the sea because water is a good conductor of electricity,” he said.
READ: Security guard killed by lightning at home in Guadalupe
“It is also not advisable to stay under trees,” he added because pointed, protruding objects could attract ligtning.
People indoors should not touch metallic objects, he added.
Lightning could extend up to 9 kilometers, he said.
His advice came after a heavy downpour yesterday resulted in the death of a secuirity guard, who was at home, where he was apparently struck by a lightning bolt that may have hit an external antennae.