Car Slams Into Crowd on Las Vegas Strip, 1 Killed

Police say they believe the female driver intentionally drove her car onto the busy sidewalk.
2:01 | 12/21/15

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Transcript for Car Slams Into Crowd on Las Vegas Strip, 1 Killed
Kay that whit won whworth charts us off in Las Vegas. Reporter: It's eerie to sigh an empty Las Vegas boulevard. Crews are working to clean up after that terrifying hit and run that killed one person and injured several others. Overnight, a horrifying scene on the long strip. She accelerated again and kept mowing everyone down. Reporter: After police say a woman drove her car off the road and intentionally hit into people on the sidewalk. Killing one person and sending 30 people to the hospital. All of this with a 3-year-old toddler in the car. It looked like she wasn't trying to stop the car. She had both of her hands on the wheel and was looking straight forward. Like, oh, my god, somewhat going on? This is Las Vegas. This is Christmas. Reporter: Crowds gathered in front of the the Paris hotel, one of the busiest intersections on the strip, when the oldsmobile veered into the sidewalk. This morning, the driver in custody. Doe we have this driver in custody? That's affirmative. She's in custody. Reporter: Police saying she is not from the area Mand have been driving for a day. A dozen in the hospital. Three still in critical condition. Police saying the child in the car is uninjured? Why? Why us? Why did this happen? What's really happened? intentional act. That means that our lvmpd homicide section will be handling the investigation. Reporter: I just spoke to the police. The lieutenant I talked to said he believes the child is in child protective services. They have several cameras in the area. They're combing through the footage. They also plan to reopen las Vegas boulevard as soon as they can. George? The big question, why? Thank you, kayna. The race for president.

This transcript has been automatically generated and may not be 100% accurate.

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