NEW YORK (CBSNewYork) – A fire broke out at Citi Field Wednesday afternoon.

A concession stand burst into flames behind locked gates.

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Video shows smoke wafting out of the stadium.

Stadium sprinklers kicked in and knocked out a fire.

The cause of the fire is under investigation.

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“The fire in the Jackie Robinson Rotunda this afternoon was in a contained area and extinguished by the fire suppression system prior to the arrival of the fire department,” the Mets said in a statement. “There was minimal damage which was non-structural and only the immediate affected area was evacuated. Nobody was in the Rotunda at the time and no one was hurt.”