TANJUNG LESUNG, Indonesia -- The death toll from an Indonesian tsunami has risen past 280 with more than 1,000 people injured.

The tsunami struck Sunda Strait coastal areas along western Java and southern Sumatra islands without warning in the darkness Saturday night, December 22.

Disaster agency spokesman Sutopo Purwo Nugroho said the latest tolls Monday morning, December 24, were 281 dead and 1,016 injured. The tally of missing is 57 but the numbers are expected to rise.

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

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. (AP)