Fire fighters extinguish fire which broke out on a crude oil tanker at Waruna Shipyard at the Port of Belawan in Indonesia's province of North Sumatra, May 11, 2020. A fire broke out on a crude oil tanker docked at Waruna Shipyard at the Port of Belawan in Indonesia's province of North Sumatra Monday morning, and several workers have been reportedly rushed to hospitals after suffering burns in the accident. (Photo by Alberth Damanik/Xinhua)

Photo taken on May 11, 2020 shows the site of a fire which broke out on a crude oil tanker at Waruna Shipyard at the Port of Belawan in Indonesia's province of North Sumatra. A fire broke out on a crude oil tanker docked at Waruna Shipyard at the Port of Belawan in Indonesia's province of North Sumatra Monday morning, and several workers have been reportedly rushed to hospitals after suffering burns in the accident. (Photo by Alberth Damanik/Xinhua)