President Joko Widodo agreed to accept international help on Sunday night, Thomas Lembong said. Lembong said he would coordinate private sector help from around the world.
Authorities scrambled to get food, aid and equipment into Sulawesi on Monday as the death toll appeared certain to rise, three days after the 7.5 magnitude quake and tsunami hit the island.
Countries such as Thailand and Australia have already offered to help.
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