LAS VEGAS -- It's National Teen Driver Safety Week, and Metro police and the Nevada Highway Patrol said just two months into the school year, there have already been four fatal teenage car crashes.

Officers said the collisions occurred because of speeding and inexperience.

This year's goal is to make sure parents get involved by making sure they know who is in their children’s car.

"Distractions are a huge factor, and that's why Nevada changed its law, and now has the graduated driver's license, because we know teenagers are easily distracted, especially when their friends are in the car. So, now we have rules in place to try to eliminate those distractions as best as we can until they get the experience,” said Metro Detective Bill Redfairn.

Following a possible racing crash that killed a 16-year-old Del Sol High School student late last month, some students said there were a group of teens who like to drive fast. Police recommended parents ride with their teens to see how they drive. They also said they hope teens start applying peer pressure to drive safely.

The week will end with a candlelight vigil at 6:30 p.m. at UNLV.