A high-speed pileup of up to 150 vehicles on a fog-bound Texas interstate highway killed at least two people on Thursday and injured up to 100, a sheriff's spokesman said."We have 18-wheelers on top of cars, we have cars on top of cars. It's just catastrophic," he said, adding that rescuers were still looking for victims.Two bodies were found underneath a tractor-trailer, he said. After all vehicles were searched, authorities determined as many as 100 people were injured, up to 12 of them seriously or critically hurt, Carroll said.