'During that course of exiting, we believe, and our preliminary investigation shows, that a theft occurred or thefts occurred inside MGM at that time.'Ĭhief Aziz said that police are not ready to say whether the theft was related to the fireworks going off. 'Someone set off what we are pretty sure are fireworks, and fireworks sound very closely related to gunshots and that created even more panic in the attempt to exit MGM,' Prince George's County Police Chief Malik Aziz said.

One man posted, 'There was a shooting on the casino floor.' Other casino-goers took to social media Saturday night, afraid it was gunshots they heard. Official launch of sports betting in Maryland at MGM National Harbor Robinson was visiting the casino for her cousin's 82nd birthday party when she heard the loud pops and saw people running toward her.