The number of people confirmed killed after a tsunami and earthquake in Indonesia rose dramatically to 844 on Monday, Indonesian authorities said.
Officials warned that the number of people killed could even reach into the thousands as rescuers reach more affected areas.
A 7.5 magnitude earthquake triggered an unexpected tsunami in the Indonesian island of Sulawesi Friday, leaving hospitals and rescuers struggling to respond.
Most of the confirmed deaths are from the city of Palu. But rescuers worry that they could find more victims of the disaster in the Donggala region, which is closer to the epicenter of the earthquake.
Indonesian disaster agency spokesman Sutopo Purwo Nugroho said earlier that bodies of some victims were found trapped under the rubble of collapsed buildings, adding that hundreds more were injured and many were missing, according to Reuters.
Authorities said that "tens to hundreds" of people were by the ocean in the hard-hit city Palu for a beach festival when the tsunami struck on Friday just after 5:02 PM Western Indonesian Time.