Photo taken on Aug. 23, 2020 shows Mount Sinabung spewing volcanic materials at Karo, North Sumatra, Indonesia. (Photos: Xinhua)

A farmer checks cabbage on his farm as Mount Sinabung spews volcanic materials at Karo, North Sumatra, Indonesia, Aug. 23, 2020.

Aerial photo taken on Aug. 23, 2020 shows Mount Sinabung spewing volcanic materials at Karo, North Sumatra, Indonesia.

Photo taken on Aug. 23, 2020 shows Mount Sinabung spewing volcanic materials at Karo, North Sumatra, Indonesia.