The Metropolitan Manila Development Authority on Sunday reported that a significant amount of improperly disposed garbage caused flooding in several areas in the National Capital Region amid the heavy rains on Saturday.

MMDA general manager Procopio Lipana disclosed that MMDA personnel recovered garbage — such as plastics and even a plywood plank — that blocked a drain near EDSA-Camp Aguinaldo.

"We obtained a huge amount of garbage despite the continuous cleaning of storm gutters," said Lipana in a radio interview.

"Aside from the large amount of garbage blocking the drainage, the heavy rain came down suddenly, and our drainage system has become inadequate," he added.

The MMDA chief reiterated that the agency planned to create a 50-year drainage master plan for Metro Manila to address perennial flooding during the rainy season, adding that drainage systems in the region's cities need to be aligned and enlarged to accommodate the larger volume of water.

Pending this master plan, the MMDA appealed to the public to properly dispose of their garbage to mitigate the flooding in Metro Manila.