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London Firefighters Say Empty Nutella Jar Sparked House Fire

Sunlight refracted through the glass jar, which was sitting on a windowsill, the London Fire Brigade said. The fire severely damaged the home and killed the residents' dog.

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Investigators determined a severe house house fire in London earlier this month was caused by an empty Nutella jar sitting on a windowsill.

London Fire Brigade / Via Twitter: @londonfire

According to the London Fire Brigade, sunlight refracted through the glass jar, which was being reused to hold loom bands. The resulting heat set the window's blinds on fire, then spread.

The fire took place Feb. 15 in Twickenham. It wasn't the first time investigators said they'd determined a fire had started because of glass or mirrors.

Do you leave glass jars on your window sills? You could be left with a nasty surprise

Claudia Koerner is a national reporter for BuzzFeed News and is based in Los Angeles.

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