The Philippines government has raised the official death toll from the typhoon disaster to 1,744 people, but the final number is expected to be much higher.
Desperate survivors are pleading for food, water and medicine as rescue workers begin their daunting task.
Bloated bodies lie uncollected and uncounted in streets and the final death toll is likely to be unclear for many days to come.
Presidential spokesman Edwin Lacierda said "we pray" the number does not pass 10,000.
The Philippine president said the death toll from Typhoon Haiyan could be lower than initially thought, but that many areas remain cut off.
Satellite images of the Philippines before and after Typhoon Haiyan struck show how the storm flattened whole communities.
British typhoon survivor says home nearly collapsed on him and his family