A powerful typhoon was lashing the northernmost islands of the Philippines Monday, prompting officials to evacuate villagers, shut down schools and inter-island ferries and warn of “potentially very destructive” damage to coastal villages.

Typhoon Julian (international name Krathon) continued to intensify early Monday, September 30 as it moves over the Balintang Channel, bringing violent winds and heavy rainfall to parts of Northern Luzon.

Taiwan’s authorities shuttered some schools and canceled domestic flights as an intensifying Typhoon Krathon moves toward the island while bringing violent wind and rain to the Philippines.