After tropical storm Megi wreaks havoc on the Philippines, at least 25 people have died in landslides and floods.

At least 25 people were killed in landslides and floods triggered by tropical storm Megi when it reached the Philippines' eastern and southern coasts on Monday, according to Philippine authorities.

The storm, dubbed Agaton in the Philippines, made landfall on Sunday with sustained winds of up to 65 kilometers per hour and gusts of up to 80 kilometers per hour (49 mph). Megi is the archipelago's first storm of the year, with an average of 20 such storms per year.

The bodies of 22 persons were discovered after being buried under a landslide in the eastern province of Leyte, according to Joellado, the police chief of Baybay city.

Three people have also perished in the southern Davao region, according to the national disaster agency, which stated the reported casualties are still being verified.

"There were landslides in communities, and then floods washed some of the victims," Collado said, adding that rescue attempts are still on since at least six more people are missing.

Rescuers wading through partially submerged homes and digging for survivors in a landslide-hit area, according to images provided by the local fire department on Monday.

Tropical Storm Megi is forecast to weaken to 45 kph on Tuesday and drift back out to sea, according to the state weather bureau.