The investigation is ongoing into a mass shooting in downtown Austin that killed three people, including a suspect, and hospitalized 14 others early Saturday morning.

Officials are investigating the early Sunday morning shooting as a potential act of terrorism, but didn’t provide further details, according to the Federal Bureau of Investigation.

Authorities say a gunman wearing clothes with an Iranian flag design and the words “Property of Allah” killed two people and wounded 14 at a Texas bar.

Three people are dead, including a shooting suspect, and 14 were hospitalized after a mass shooting in downtown Austin, according to local officials who held a news conference early Sunday morning.