firefighters said, the second blaze in two days in one of the capital's impoverished neighborhoods. They said it was sparked by an oil lamp that was left unattended in one of the houses at the Navotas fishing port on Manila Bay.
Hours after the fire, residents were sifting through the smoldering ashes to salvage whatever they could from the ruins.
At least 400 homes made of scrap sheet iron, plywood, plastic and cardboard were destroyed.
On Saturday, fire also razed hundreds of houses and left more than 1,000 families homeless at a slum in Mandaluyong City in Manila.
Fires are common in Manila's slums, where thousands of people are crammed in filthy shacks along polluted waterways and poor areas.