ELLWOOD CITY, Pa. (WKBN)- An investigation is underway after a building explosion that happened Tuesday morning.

Crews were called to a business complex in the 600 block of Mount Vernon Drive in Ellwood City around 12:15 a.m.

Authorities said that no one was hurt.

Crews are still working to find out what caused the blast.

Jonathan Renforth and Brian Oehlbeck contributed to this report.

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