On November 2 in Ningbo, Zhejiang Province, supermarket owner Mr. Wu had just used a lighter and casually set it down on a table. About 30 seconds later, the lighter began making strange noises before suddenly exploding and catching fire, with flames spreading rapidly.

Mr. Wu reacted quickly, knocking the burning lighters off the table and putting out the fire in time.

He explained that the lighter he had just used was still hot and had come into contact with another lighter sitting in a metal tray on the table. The heat softened and damaged the second lighter’s casing, causing gas to leak. He heard a “hissing” sound and bent down to check, but the lit cigarette in his hand ignited the leaked gas, resulting in a flash explosion.