A man is dead after three port-a-potties caught fire Sunday afternoon outside M&T Bank Stadium in Baltimore, authorities said.

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According to WMAR, firefighters responded to the scene about 3 p.m. after a security guard spotted the blaze in a parking lot outside the stadium, home to the NFL's Baltimore Ravens.

The Baltimore City Fire Department tweeted that "an adult male was seen on fire coming from a Port A Potty."

"Upon arrival, the adult male was pronounced deceased & three Port A Potties engulfed in flames," the tweet said.

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Officials are still trying to determine what caused the fire, WMAR reported.

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