HOUSTON --
It's still not clear what caused a house fire in northwest Harris County, but arson investigators say it's the second time they've been called to the home this year. The home on Montgomery near Jordyn Ridge started to burn just before 9:30pm. It appears the fire started on the second floor and firefighters stopped the flames from spreading to the entire home. No one was hurt, but one firefighter was taken to the hospital for heat exhaustion.