A shooting at a pop-up party in Houston left two 16-year-olds dead and three others wounded, including a 13-year-old girl, who is now in critical condition, according to authorities.

Assistant Chief Luis Menendez-Sierra said officers discovered a "very hectic scene" with a large crowd of people running out of a makeshift club.

A shooting in Houston, Texas, left a pair of teenagers dead and three others wounded after a pop-up party at a makeshift club Saturday night.

Pop-up parties, particularly those involving children, have become a public safety concern. Now, this past weekend, six children in Houston were shot at such an event.

Assistant Chief Luis Mendez-Sierra said it will be difficult to obtain surveillance footage from the incident since the party happened at a non-sanctioned club.