In a statement on Sunday, Foreign Ministry Spokesman Bahram Qassemi offered sympathy to the Indonesian nation and government, and the bereaved families of victims of the disaster.
At least 222 people have been killed and 843 injured after a tsunami hit the coast of Indonesia’s Sunda Strait.
Dozens of people are missing and authorities expect the death toll to rise as many affected areas have not yet been reached.
The tsunami hit the area on Saturday night. There was no pre-warning given. The tsunami is thought to have been caused by the eruption of the Anak Krakatoa volcano, which may have triggered underwater landslides.