The FDNY has extinguished a fire at Citi Field, which they say started in a display case.

Video on social media shows flames bursting just inside an entrance to the stadium, with heavy smoke billowing out.

The sprinklers did go off, fire officials say. No one was hurt.

It’s not clear what caused the fire. One witness said on Twitter said, “Unsure what happened but I heard a loud blast at Citi Field and then saw smoke and this fire.”

The Mets are away, scheduled to play at Atlanta Braves Wednesday evening.

More bad news for the struggling Mets. The FDNY was forced to put out a fire that broke out at Citi Field. (Video courtesy Instagram user raul.jimenezii) pic.twitter.com/2F2lqbevgB

— Spectrum News NY1 (@NY1) May 30, 2018

Unsure what happened but I heard a loud blast at Citi Field and then saw smoke and this fire. Hoping for everyone’s safety. pic.twitter.com/I3w1YWjfVn

— Daniel Mosher (@DanielMosherNY) May 30, 2018

The Mets are so bad right now that CITI FIELD IS LITERALLY ON FIRE.

YOU CAN NOT MAKE THIS STUFF UP.

— Jake Brown (@JakeBrownRadio) May 30, 2018