Authorities said the rescuers were wading through floodwaters when a wall beside them collapsed, sending them into the fast current.
A fire breaks out on a ferry carrying more than 130 passengers and crew, leaving at least seven people dead and prompting a search for the missing.
Powerful 6.7-magnitude earthquake hits Indonesia's Sumatra island, while a 6.4-magnitude quake strikes Philippines with no immediate reports on casualties in either countries.
Typhoon Goni hit Catanduanes Island before dawn with sustained winds of 225 kilometres per hour. It came a week after Typhoon Molave battered the same region, killing 22 people.
Mass evacuations were complicated and slowed down by the coronavirus, which also forced authorities to reduce the number of people sheltering together.
President Duterte has repeatedly threatened to impose military rule in the Philippines where the mere words evoke the worst rights abuses of the Ferdinand Marcos dictatorship.
The quake's epicentre was about 13 kilometres east of the city of Surigao but there was no tsunami threat.
A 7.3 magnitude undersea earthquake, measuring 617 km, struck southeast Philippines on Tuesday. The quake comes five days after a smaller tremor in the same area.
The category 5 storm could cause flooding, landslides and storm surges of up to five meters. It is the second storm to batter the country in the past week.
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