Mount Anak Krakatoa eruption seen on July 19, 2018 in Kalianda, Indonesia

At least 20 people have been killed and 165 injured after a tsunami hit the coast around Indonesia’s Sunda Strait, government officials say.

The country’s disaster management agency says two people are missing, and dozens of buildings were damaged.

It says the possible cause of the tsunami were undersea landslides after the Krakatoa volcano erupted.

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

The deaths were reported in the Pandeglang, South Lampung and Serang regions.

Footage posted by the head of the disaster management agency showed the aftermath of the tsunami, with flooded streets and an overturned car.