A masked gunman was killed Monday morning following a shootout with federal officers outside a Dallas courthouse. There were have been no other reported injuries.

After the gunfight, authorities were able to take the wounded shooter into custody and identify him as 22-year-old Brian Isaack Clyde. He was rushed to Baylor University Medical Center, where he was declared dead.

The gunfire began when Clyde arrived at Earle Cabell Federal Building armed with an assault rifle and dressed in combat gear. He began firing at the building from a parking lot across the street, nearly hitting a security guard, a woman walking her dog and a man tying his tie.

"There has been an exchange of gunfire between a suspect and federal officers," the Dallas Police Department wrote in a post on Twitter. "The suspect was shot and transported to an area hospital. No officers or citizens injured."

“I just saw a burst of people running out and a round of shots. It was just shots, maybe 10 to 15 shots all rapid shooting, and I just ran across the street into the traffic,” witness Don Miles told local outlet CBS 11.

Several pictures and videos began to emerge on social media from news outlets and witnesses, capturing the shootout as it occurred.

Not long after the shootout, Dallas police located Clyde’s vehicle nearby but were forced to call in bomb squad because of an unidentified object located on the car. A controlled explosion followed, which was reportedly strong enough to shake trees several blocks away.

Several buildings, including Earle Cabell Federal Building and nearby El Centro College, along with surrounding streets have been closed.