Footage filmed on Friday showed Typhoon Usagi battering the northern Philippine Cagayan province, knocking out a bridge and causing powercut and widespread damage.

Typhoon Usagi weakened sharply on Friday after bearing down on the Philippines' northern towns, blowing away houses in its path as authorities brace for another storm that could hit the capital Manila over the weekend.

The storm made landfall on the island of Luzon. Forecasters warned of torrential rain and landslides in the north of the country.