The FBI is investigating a mass shooting in Austin, Texas that killed three people and injured 14 others early Sunday morning as an act of terrorism. The shooter was reportedly wearing a shirt displaying the Iranian flag, prompting federal authorities to examine potential connections to international terrorism. Local law enforcement responded to the scene where the attack occurred in the early hours.

Details about the shooter's identity and motive remain limited as the investigation continues. The incident adds to a series of mass shootings across the United States, raising renewed concerns about gun violence and public safety. Federal authorities are working alongside local police to gather evidence and determine whether the attack was inspired by or connected to any terrorist organizations.

The shooting has shocked the Austin community and prompted calls for enhanced security measures. As investigators analyze the evidence, including the significance of the Iranian flag imagery, the case highlights ongoing challenges in preventing targeted attacks and addressing the complex factors that drive individuals to commit acts of mass violence.