Rescuers on Tuesday continued search operations after Typhoon Sinlaku pounded Taiwan over the weekend, leaving at least five people dead and 10 missing, officials said.
The latest casualty came after a tunnel in central Taiwan partially caved in, killing one person and injuring three, said the National Fire Agency.
Ten people remained missing in central Taiwan, where floods and mudslides triggered by up to 160 centimetres (62 inches) of rain caused bridges, hotels and houses to collapse, it said.
At least 20 people were also injured when Sinlaku lashed the island with powerful winds and torrential rains over the weekend, disrupting land and air traffic and causing power blackouts.
Hundreds of rescuers have been mobilised to combat floods and conduct rescue missions, while nearly 2,000 people were evacuated to safety, the agency said.
Sinlaku also caused more than 500 million Taiwan dollars (15.63 million US) in damage to agriculture, the authorities said.