Authorities said two people were killed and 14 injured in the early Sunday shooting outside a Sixth Street bar, and investigators are continuing to piece together what led up to the attack.

Here's what we know so far. Austin police responded to reports of an active shooter outside Buford's bar on West Sixth Street early Sunday morning. Police Chief Lisa Davis said officers arrived to find an active shooter.

Austin police and other emergency officials responded overnight to a mass shooting in downtown Austin near West Sixth and Nueces streets, where authorities say up to 20 people were shot. Officials told the Austin American-Statesman that 4 people were killed and at least 17 victims were transported to local hospitals after gunfire at Buford's.

The FBI and police in Austin said Monday that it’s too soon to identify the motive behind the mass shooting early Sunday that the FBI has said is being investigated as a potential act of terrorism, coming after the U.

Police in Austin shot and killed the gunman, who used both a pistol and a rifle to carry out the attack, police said.

Federal and local authorities are investigating the Austin Sixth Street shooting that left three dead and 17 injured. Here's what we know Monday.

A gunman wearing clothes with an Iranian flag design and the words “Property of Allah” shot and killed two and wounded 14 early Sunday.

Officers in Austin shot and killed the gunman, who used both a pistol and a rifle to carry out the attack, police said. The FBI said the shooting was being investigated as a potential act of terrorism.