Three men were killed and another was injured in a shooting Tuesday night at a night club in Midtown, according to Houston police.

The shooting happened at 9:43 p.m. inside DD Sky Club, located at 2217 Chenevert Street.

Houston police identified the three victims as Jailyn Bernard Page, 19, Bryce Lee Goddard, 21, and Christopher Donshae Jackson, 22. They were all pronounced dead at the scene. The fourth victim was taken to an area hospital in critical condition.

According to a security guard at the club, there were two shooters. The security guard told investigators he had never seen the suspects before and searched them before they entered the club, police said. The security guard said the suspects didn't have any weapons on them, so he believes they snuck the guns into the club. Investigators said the security guard believes the shooters came looking for the victims, police said.

Houston police said a physical altercation broke out inside of the club and escalated when two armed men fired several shots at the victims. The suspects then fled the scene.

Police said all three victims were rappers in their 20s and were looking to have a career in the music industry. Investigators said the victims would come to the club every week to perform and had family members in attendance.

According to investigators, it is unknown what sparked the shooting.

Anyone with information, in this case, is urged to contact the HPD Homicide Division at 713-308-3600 or Crime Stoppers at 713-222-TIPS.