It happened around 9:30 p.m. on Saturday in the 2800 block of Fulton Street.
Two groups of people began to fight at another bar 12 miles away and were kicked out of that establishment before ending up at the Fulton Street location, according to Houston police.
Both groups continued to scuffle when someone opened fire, hitting at least two people.
A 44-year-old man was killed. Another person was transported to a hospital and was stable, police said.
A third person may have been wounded in the ordeal, but officers haven't been able to locate them, according to HPD Commander Caroleta Johnson.
Investigators recovered two weapons at the scene, but no arrests were made.
The fight may have been gang related, police said.
Houston PD released images of three men wanted in connection with the shooting. Houston Crime Stoppers is offering a reward of up to $5,000 for information.
UPDATE: Our homicide detectives need assistance in identifying these 3 males wanted in last night's fatal shooting outside of a bar at 2836 Fulton St.— Houston Police (@houstonpolice) August 16, 2020
Please call HPD Homicide 713-308-3600 or @CrimeStopHOU for reward up to $5K.
More info is at https://t.co/Qa6PfTweRp https://t.co/L7RxWfPDpt pic.twitter.com/Ti3Knk0xrx