Typhoon Krathon pounded a remote group of tiny Philippine islands near Taiwan on Monday, cutting power and communication services, the state weather service and officials said.

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.

Typhoon Krathon, known as Julian in the Philippines, intensified into a super typhoon on Tuesday morning, October 1, according to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA).