LAS VEGAS (KLAS) — The loud shattering of a glass door Saturday night at the MGM Grand apparently was mistaken for gunfire, causing panic inside and a social media frenzy.

Las Vegas Metropolitan Police said they responded to calls of possible gunfire at 10:42 p.m. and found a glass door shattered in the valet area of the Strip casino.

“There is no evidence of gunfire in the area and the event is under investigation,” police said in an email shortly before midnight.

Capt. Branden Clarkson said at a media briefing that a person has been detained and faces a misdemeanor charge of destruction of property.

Las Vegas Strip traffic following unfounded reports of gunfire on Saturday, July 16. (KLAS)

Social media was flooded with reports of a possible shooting. Videos showed people scurrying for cover and other posts described and security and police responding.