The office of the UN High Commissioner for Refugees said it now needs USD 19.2 million to address "primary protection issues" for devastated communities, more than double the USD 8.3 million it has raised so far.
"Almost a month after the typhoon, its effects show no sign of abating," said Bernard Kerblat, UNHCR representative in the Philippines.
"Today, more than ever, protection and humanitarian assistance are needed to ensure that no more lives will be taken by the consequences of this devastating typhoon."
The typhoon, one of the strongest in Philippine history, unleashed 315 km per hour winds and tsunami-like storm surges across the central islands on November 8, killing 5,680 people, with 1,779 others still missing.
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It wrecked dozens of towns and left more than four million survivors needing emergency assistance, including 125,000 who remain in evacuation centres, the National Disaster Risk Reduction and Management Council said today.
The UN announced last week that it would shortly increase its overall appeal, which currently stands at a total of USD 348 million, of which about half has been raised.
"This new (UNHCR) appeal will form part of the upcoming UN aid appeal," Johanna Morden, external relations associate for the UNHCR told AFP.