EWING - (AP) - Speeders beware on Interstate 80.

The New Jersey State Police is joining law enforcement throughout the country for the "I-80 Challenge Highway Safety Initiative."

Troopers along the interstate will target motorists who speed, drive drunk or don't wear seatbelts through the end of the month. Officials say the number of crashes increase during the summer.

There were 13 crashes resulting in 14 deaths on Interstate 80 in New Jersey in 2012. This year, there have been four crashes on I-80 in New Jersey resulting in four deaths. State Police say that's a nearly 43 percent decrease from this time last year.