CARITA BEACH, Indonesia (AP) — Doctors are working to help survivors and rescuers are looking for more victims from a deadly tsunami that smashed into beachside buildings without warning in the darkness along an Indonesian strait.

The waves that swept terrified people into the sea Saturday night followed an eruption and possible landslide on Anak Krakatau, one of the world's most infamous volcanic islands.

At least 222 people were killed, more than 800 were injured, and dozens have been reported missing after the tsunami hit coastal areas along western Java and southern Sumatra islands. The death toll could increase once authorities hear from all stricken areas.

Indonesian President Joko "Jokowi" Widodo expressed his sympathy and ordered government agencies to respond quickly to the disaster.