Gunman wearing mask and body armor opens fire outside federal courthouse

A gunman who exchanged fire with police outside of a federal Dallas courthouse has been fatally shot.

According to NBC News, FBI Special Agent in Charge Matthew DeSarno confirmed that Brian Isaack Clyde, 22, was fatally shot during a gunfire exchange with police on Monday morning outside of the Earle Cabell Federal Building in Dallas.

According to the report, a Dallas Morning News photographer was at the scene on Monday morning and observed Clyde, reportedly wearing a face mask and body armor, approach the building’s front doors with a rifle and open fire.

Witnesses reportedly said they heard up to 20 gunshots fired.

NBC News also reports that authorities performed a controlled explosion of a vehicle connected to the suspect.

There were no reports of additional injuries and DeSarno told the news station there was no indication of an additional threat to the public.