SAN ANTONIO -

An elderly woman and her daughter were rudely awakened Tuesday morning when a large truck crashed into the side of their house.

Accident investigators said it happened around 4 a.m. in the 900 block of Mount Serolod Drive, off of Blanco Road, near Ramsey.

Witness Aurora Williams said she was following her friend, who was driving a cargo truck down Blanco Road, when he suddenly veered off the road and wrecked into the home.

"Oh my God, it was traumatic," she said. "I was scared because I didn't know what was going to happen. I was scared, wondering if he was going to be OK."

The truck driver lost control, took down a street sign and crashed into the house, right next to a 79-year-old woman's bedroom.

At the time, the woman's daughter thought the crash was the sound of thunder and that a tree limb had fallen on the house.

"(My mother) was sitting up in her bed and she was OK, so I told her don't move and I (came) running outside and there was this big Mac truck that was in the house," said Ann Specht.

Specht and Williams said they went to the aid of the driver, who was passed out.  He eventually became coherent and got out of the truck through the window.

Tire marks left behind show the truck apparently jumped the curb about 50 yards from the house, ran through a grassy yard, knocked down a street sign and continued across the street into the Specht's mother's home. 

"It just looks like a tornado came through it. Stuff was everywhere. Furniture is all over the place," she said.

Fortunately, no one inside the home was injured but the driver was taken to the hospital with unknown injuries.

Williams said she didn't understand what caused him to veer off the road.

"I don't know if it was the weather. I don't know if the tires were slick," she said. "I'm thinking he probably lost control or the tires just slipped on the road. Something had to happen where he just lost control and couldn't gain it back."

Police at the scene didn't believe speed or alcohol was a factor and said the driver isn't being charged.