PROVIDENCE, R.I. (AP) — Malfunctioning pyrotechnics are being blamed for a sulfur smell that forced theatergoers out of a performance of "The Phantom of the Opera" at the Providence Performing Arts Center.

The Providence Journal reports that Deputy Assistant Fire Chief Daniel J. Crowley said one of the pyrotechnic devices did not fully discharge as it should have on Friday night.

Crowley said the incomplete combustion generated more smoke than was intended and smoke drifted into the third-floor balcony.

For the capacity crowd of 3,100, the incident followed an hour-long delay of the start of the show caused by an unrelated computer problem.

Crowley said the audience evacuated without alarm and in an organized fashion.

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