Five girls in Poland died Friday after a fire broke out in an escape room where the teens were playing, the BBC reported.
The girls, all 15, were celebrating a birthday party when the blaze broke out in the attraction, located in the northern city of Koszalin, according to the BBC.
A 25-year-old man was seriously injured with severe burns, CNN reported.
Escape rooms are popular around the world. Participants are locked in a room and must solve a series of puzzles to escape.
Officials have not determined what caused the fire, the BBC reported.
Polish President Andrzej Duda wrote on Twitter that the fire was an "appalling tragedy."
"Five joyful girls starting out in life have had life torn away from them," he wrote. "May God protect their parents and loved ones."
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