DAVIE, Fla. (AP) — Authorities said the sound of a car backfiring near a South Florida movie theater led police to evacuate moviegoers following multiple reports of an active shooter.

The incident happened Sunday night at the Cinemark movie theater in Davie, Fla.

Davie police later told news outlets that a passing vehicle’s engine likely backfired, prompting the scare. Moviegoer Jonathan Fernandez told WPLG that the movie cut out and alarms went off.

He says people were asked to leave the theater, resulting in a bit of panic. Police officers went theater-to-theater inside the complex and found no signs of a shooter.