At least 832 people are known to have died, but it's thought that number will rise into the thousands.
The city of Palu has seen wide-scale destruction.
It's thought dozens of people may still be alive, trapped under rubble.
A tsunami hit Sulawesi after a 7.5 magnitude earthquake on Friday.
Our correspondent Bruce Harrison reports from the road towards Palu on Sulawesi.
In: 'This highway…
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