The world’s strongest storm this year killed at least 16 people in the Philippines, with search and rescue underway a day after Typhoon Goni slammed the Southeast Asian nation.

As many as 390,000 people fled their homes and most are staying in evacuation centres, which include about 5,400 schools, authorities said in a briefing on Monday. Catanduanes, the province where the typhoon first made landfall, remains unreachable and an emergency team is on its way by air to establish communications.

Most of the fatalities were in Albay and Catanduanes provinces south of Manila, some of them swept away by raging waters, according to the region’s disaster risk-monitoring agency.