Jakarta – More than 220 people have been killed and 843 injured after a tsunami hit coastal towns on Indonesia’s Sunda Strait, government officials say.

There was no warning of the giant waves which struck at night, destroying hundreds of buildings, sweeping away cars and uprooting trees.

It is thought undersea landslides from the Anak Krakatau volcano caused them.

President Joko Widodo has expressed his sorrow for the victims and urged people to be patient.

The Sunda Strait, between the islands of Java and Sumatra, connects the Java Sea to the Indian Ocean.

What do we know so far?

The disaster management agency has warned people to stay away from the coastline due to fears of another tsunami.

Saturday’s tsunami struck at about 21:30 local time (14:30 GMT), during a local holiday.

It hit several popular tourist destinations including the Tanjung Lesung beach resort in the west of Java island. (BBC)