CY-FAIR, TX --A lightning strike is blamed for starting a fire that destroyed a home in Cy-Fair. The home on Clayton Hill was already engulfed in flames by the time firefighters arrived. Crews couldn't fight the flames inside the home because the roof was collapsing. The homeowners told investigators their home was hit by lightning during last night's storms. The fire didn't start until a few hours after the strike. No one was hurt, but the house was gutted. The fire department says it's a good idea to ask firefighters to check out your house if you think it's been struck by lightning, even if you don't see any fire right away.