ARLINGTON, Va. (AP) — Police in northern Virginia believe the evacuation of an entire shopping mall this weekend happened because a child shouted inside a movie theater about a shooter.

The reports about a shooting led to a massive police presence Saturday evening at the Ballston Quarter mall in Arlington and search. The Arlington County Police Department says it found no evidence that a shooting took place.

An Arlington County news release on Sunday said a preliminary investigation suggests the unknown male youth entered a theater where a horror movie was playing and shouted— leading people inside to flee and yell for 911 calls. The police investigation is continuing.

Authorities say one person suffered a minor injury while evacuating.