George Zimmerman was taken into custody on Monday following an altercation with another person involving a gun, Orlando's WKMG reported.
Police told the news station they were called to respond to a report that Zimmerman was involved in an altercation with another individual at a home on Sprucewood Road in Lake Mary, Fla. A threat was involved, police said.
No other details about the incident were immediately available, according to WKMG.
George Zimmerman has not been arrested and Lake Mary police are at the home trying to determine what happened, the Associated Press reported. The AP also reported that police said Zimmerman's wife, Shellie, made the call saying Zimmerman threatened her and her father with a gun.
WKMG is now reporting that Zimmerman is "being questioned" about the incident.
Listen to the audio of the 911 call here.