By CBS3 Staff

PHILADELPHIA (CBS) — An investigation is underway after a fire broke out at a building at 19th Street and Washington Avenue around midnight Saturday. Firefighters battled flames on the roof of OpenBox Athletics.

“Unfortunately, what you may be hearing as you wake up this morning is true. OBA suffered a fire last night. The extent of the damage is still being determined. Thankfully, no one was hurt,” the gym said in a post on Instagram. “This is another speed bump at a time that we were very much looking forward to seeing you all inside in just days. But we will be back.”

All of the gym’s outdoor classes for Saturday have been cancelled.

The BalletX dance center is connected to the gym.

There are no reports of injuries.

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