Heavy monsoon rains have left at least 19 persons dead, most of them children, in the northern Philippines, state media reported. Four other persons are still reported to be missing, and many towns are flooded. Most were killed by landslides set off by the rain in the province of Zambales on Luzon, the largest island in the archipelagic nation, the government-run Philippines News Agency (PNA) said. The landslides killed 16 persons in the town of Subic, the council said. At least 10 of the victims were aged 12 or younger.