At least 10 people were reported dead or missing and more than 1,800 were forced to evacuate as tropical storm Ketsana lashed the Philippines Saturday, officials and radio reports said.
The government declared Manila and 25 other provinces to be in a “state of calamity,” Defence Secretary Gilberto Teodoro said, as heavy rains brought by the storm caused the worst flooding seen in the capital in some 20 years.
A wall, weakened by floodwaters, collapsed in a suburb of Manila, killing a father and child while five children drowned in flooding elsewhere in the city, radio station DZMM said.
Three other people were swept away by a swollen river outside the capital, it said.
Over 1,800 people were forced to flee their homes and take refuge in evacuation centres due to rising waters, the civil defence office said.
Flooding was reported in many districts with waters in some areas reaching as high as the rooftops of one-storey buildings, the civil defence office said.
Power was cut in many parts of the city, partly due to flooding but also as a protective measure in some districts to prevent people attempting to escape the floodwaters from being electrocuted by fallen lines.
Defence Secretary Gilberto Teodoro, who is also in charge of civil defence operations, said all the efforts of the police and the military were being concentrated on rescuing people trapped on rooftops.
But he said the flooding in the streets and the large numbers of stalled vehicles were giving rescue units “a hard time” in reaching those affected.
In a radio broadcast, he advised that “if you are on the roof, don’t try to leave. Just remain there on the roof and we will do everything to rescue you.”
He remarked that even he had to swim through chest-deep waters to reach his office.
The storm, bearing winds of 85 kilometres (53 miles) per hour with gusts of 100 kph, hit the main island of Luzon near the town of Infanta at about 0200 GMT Saturday, moving west at 19 kilometres per hour, the weather station said.
Government weather forecaster Gener Quitlong said the equivalent of one month’s worth of rain fell on the city in less than a day.
“We knew there would be rain but not like this,” Quitlong told reporters.
One of the three airport terminals in Manila was forced to cancel and divert flights after the flooding hampered its electrical system.
Local officials interviewed on radio said they were moving to evacuate more of their residents.
At least four hospitals in the capital had to move their patients to higher floors after water began seeping into lower levels.
The highways leading to metropolitan Manila were rendered impassable due to the huge number of vehicles stalled in the floodwaters.
Local officials made radio appeals asking rescue agencies to send rubber boats to rescue stranded people, some of whom had been on their rooftops all day and were panicking because of rising waters.
In a suburb of Manila, residents in a flooded area were seen rescuing children from rooftops by placing them in inflated inner tubes before dragging them to higher ground.
The second level of a three-step storm alert was raised over the eastern provinces of Luzon while the first level alert was hoisted over metropolitan Manila and surrounding areas, the government said.
The storm is expected to move west, across the main island of Luzon, before exiting the country early Sunday. The government weather station said it is weakening and that rains are likely to ease up after sundown.
An average of 20 typhoons and storms enter the Philippines from the Pacific Ocean over the eastern seaboard every year.