Tropical Storm Kai-Tak slammed the northern Philippines Wednesday, triggering flash floods and landslides and killing at least three people, one week after deadly monsoon rains battered the country, disaster relief officials said. Kai-Tak, packing maximum sustained winds of 75 kilometres an hour and gusts of up to 90 kph, made landfall over the north-eastern Philippines before dawn, the weather bureau said. Twenty northern provinces had been placed under storm warnings since Tuesday, according to a report of DPA.