The SWAT team responded to a call from East Lake Court Apartments at 4:16 Friday afternoon.
A caller told police they were concerned that a 43-year-old white male family member was considering suicide, according to Wayne Jefferson, spokesman for the Chattanooga Police Department.
The Chattanooga Housing Authority also spotted him and noticed he was holding a gun. The man was taken into custody without incident by the SWAT team.
Jefferson said the man will likely undergo an evaluation.
Stay with the Times Free Press for more information as it becomes available.