The offspring of Indonesia's infamous Krakatoa volcano erupted, launching a 3,000-metre volcanic ash cloud into the sky.

Mount Anak Krakatoa, which means "Child of Krakatoa," belched thick ash into the strait that separates the islands of Java and Sumatra, prompting authorities to warn nearby residents to put on masks outside.

The alert level of Anak Krakatau volcano in Indonesia seem to have been heightened from alert level 2, to alert level 3 (Orange/Siaga) according to info. found at the website of Indonesian Authorities @id_magma.

New restriction zone is set a 5km from the active crater. pic.twitter.com/PXaLJ3GBnC

— Øystein L.A. (@oysteinvolcano) April 24, 2022

Deny Mardiono of Indonesia's Geological Agency said as quoted by AFP that "we are still recording continuous eruptions with thick clouds towering at between 500 to 3,000 meters from the peak." 

Authorities have ordered people to stay away from a two-kilometer exclusion zone around the volcano, which is currently classified as level two on Indonesia's four-tiered volcanic alert system.

It is worth mentioning that Anak Krakatoa has erupted at least 21 times in recent weeks, but Sunday's eruption was the most powerful yet, according to Mardiono.

"People, including tourists, should adhere to the recommendation from the Geological Agency, which prohibits anyone to be within a two-kilometer radius from the crater," he added.

The volcano has been sporadically active since it emerged from the sea at the beginning of the last century in the caldera formed by Mount Krakatoa's 1883 eruption.

With an estimated 35,000 people killed, it was one of the deadliest and most destructive disasters in history.

Eruption at Ibu volcano in North Maluku - Indonesia, yesterday 23th April. Ash plume to 1000m above the summit.

📸 @id_magma pic.twitter.com/VjCUSOmsBY

— Øystein L.A. (@oysteinvolcano) April 24, 2022

Anak Krakatoa last erupted in 2018, causing a tsunami that killed 429 people and displaced thousands.

Indonesia, a Southeast Asian archipelago nation, is located on the Pacific Ring of Fire, where continental plates collide, resulting in high volcanic and seismic activity.

There are nearly 130 active volcanoes in the country.