PHILADELPHIA — Angry fans of singer Gerardo Ortiz took their exasperation out on his set when he failed to show at a concert in Philadelphia.

Ortiz was set to perform Saturday at the Explanada De Philadelphia, but he never took the stage. An opening band played a few songs before it was announced Ortiz wouldn’t appear.

Video posted online shows fans throwing items at the stage, smashing speakers and damaging instruments and other equipment.

On the day of the concert, Ortiz posted a photo on Facebook of himself and friends toasting with some beers. An apology was posted to Ortiz’s Facebook page later Saturday saying he couldn’t perform due to health reasons.

An email seeking comment from Zamora Live, which booked the space for Ortiz’s show, wasn’t immediately returned Wednesday.