The Houston Police Department responded to the deadly shooting at about 1:30 p.m. at 3701 Gassmere St.
Police said the call initially dropped as a shooting and then to an assault, with the caller stating two men were fighting.
Homicide detectives responded to the scene and found a man dead from a gunshot wound.
In a later update, HPD said a man believed to be the victim's brother had been detained in connection to the shooting, though it's unclear what exactly transpired.