Passengers on an Air China flight witnessed a lithium battery burst into flames in luggage that had been placed in an overhead bin on Saturday.

The flight was on its way to Seoul but had to make an emergency landing in Shanghai when the incident happened, the New York Post reported.

The plane had departed Hangzhou Xiaoshan International Airport just before 10:00 a.m. with 160 people onboard, the Post said, citing the airline and Chinese state media.

When the battery ignited, travelers began calling out for help to quell the flames.

“Two flight attendants sprinted down the aisle carrying fire extinguishers while others shouted for travelers to remain seated,” the Post article continued.

“A passenger quoted by local media said they heard a loud explosion moments before flames sh

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