Updated: Fire at Potomac Nationals Stadium

Update. June 30:

Chief Brodie released additional information concerning the fire Friday evening. It took fire and rescue units 30 minutes to contain the fire. The administrative offices on the second floor took on the most significant damage.

"The building inspector has designated this area unsafe to occupy. Approximately six employees were in the building when the fire occurred and self-evacuated prior to the fire department’s arrival," said Chief Brodie. "One employee was transported to a medical facility for smoke inhalation. The preliminary damage estimate is not yet available. A health inspector was also requested and responded to assist."

Update, 6:40 p.m.:

"The fire is out," said Curtis Brodie, Battalion Chief and Deputy Fire Marshal for the Prince William County Department of Fire and Rescue. "The incident initially was a inside gas leak. Upon arrival of fire and rescue units they found a working fire. The fire is extinguished. Fire Marshals are on the scene to investigate the origin and cause. One minor smoke inhalation injury to a civilian transported to area hospital. There is not a game today."

Update, 6:20 p.m.: In the record-breaking heat, the firefighters were quick to take off their gear as they left the stadium. Coolers of water and electrical fans were set up around the base of a large tree as the firefighters took turns sitting in the shade. 

A man was helped onto a stretcher. He was conscious and able to sit up. The extent of any injuries are so far unknown. 

At the time I arrived, the black smoke that was initially reported was no longer visible. 

I'll update you when I receive more official information on the status of the fire.

Original story: Prince William County fire and rescue crews are working a fire at the .

The stadium has been evacuated, according to Prince William County police. 

Prince William County police posted on their Facebook page that there was black smoke coming from the stadium at 7 County Complex Ct. in Woodbridge. 

The P-Nats are scheduled to play Friday night in Salem, VA against the Salem Red Sox. 

Lake Ridge-Occoquan Patch editor Rachel Leon is on her way to the scene. Patch will update as we get more information.