A U.N. official says the death toll from two earthquakes in Indonesia could top 1,100 as emergency workers pull bodies out from the wreckage of fallen buildings.
John Holmes, U.N. humanitarian chief, said there are also "many hundreds" of injured after a 7.6-magnitude earthquake struck Wednesday and a 5.2-magnitude temblor followed early Thursday.
U.S. President Barack Obama said Thursday he is "deeply moved" by the suffering and loss of life after the earthquake.
Indonesian officials have put the death toll at 770 people but warn that it is likely to rise.
The 7.6-magnitude quake struck off the coast of the Indonesian island of Sumatra, and the following one struck the region of Kepulauan Taulaud, north of Sulawesi Island.
Most of the deaths have been reported in the Sumatra city of Padang, where at least 500 buildings were toppled by the quake. A hospital, hotel, and school facilities were among the buildings destroyed in Padang, a coastal city of 900,000.