Six firefighters were hospitalized Friday after responding to a house fire in northwest Dallas. Jason Evans, a Dallas Fire-Rescue spokesman, said crews responded to flames and heavy smoke about 11 a.m.

Dallas Fire-Rescue responded to a house fire on Durango Drive shortly before noon Friday. While battling the blaze, firefighters noticed a change in the odor's color, prompting immediate evacuation. Six firefighters were taken to Parkland Hospital for treatment after being exposed to chlorine from an unmarked container found at the scene.

Six firefighters were taken to the hospital for breathing issues after responding to a house fire late Friday morning in northwest Dallas, according to authorities. Firefighters arrived just after 11 a.m. to reports of heavy smoke at a one-story residence at 3559 Durango Dr.