Trocaire has committed emergency support to its partners working in the Philippines.
Thousands are reported dead and hundreds of thousands of survivors are in need of emergency aid.
Agencies are also assessing water and sanitation needs to stop the spread of disease.
UNICEF is rushing supplies to the four million children affected.
Meanwhile, Oxfam has reported seeing children begging for help, with signs that read: "Help. We need water, food and medicines."