Fire in built environment

Ten people were hospitalized after a fire in the West Humboldt Park neighborhood Friday, the Chicago Fire Department said.The flames and smoke filled the apartment building in the 1500-block of North Karlov Avenue.One of the injured is an 81-year-old woman who is being treated for smoke inhalation.Neighbors rushed out of the building in the bitter cold, some in their pajamas to get to safety.The fire chief applauded his firefighters on scene."We did have some fire extension to get up into the upper floor and the back porches," CFD Deputy District Chief Ernie Pinkston Jr. "So we had a total of four lines on the interior battling the fire. The men and women of the fire department on the scene, they did a great job under the circumstance with the cold weather, did a fantastic job."The cause of the fire that started in the basement is under investigation.