Indonesia's disaster agency says 832 people are now known to have died after an earthquake and tsunami.
Most of the victims were killed in the city of Palu - on the island of Sulawesi.
The number is expected to rise into the thousands - as many regions are currently out of reach - due to roads being cut off.
Katie Peters - a disaster and resilience expert - says it's an "incredibly difficult situation" for those trying to help.
