The Philippines air force has been flying C-130 transport planes in and out of Tacloban airport, carrying relief supplies and evacuating hundreds of residents.
The US is sending its aircraft carrier USS George Washington and other navy ships to help with the relief work. The carrier is expected to arrive within the next few days. The UK's Royal Navy destroyer HMS Daring is also making its way from Singapore.
Other countries have also pledged millions of dollars in assistance.Japan is providing $10m and Australia $9m in humanitarian aid, while New Zealand has pledged over $1m.