New Orleans police say an alligator crossing Interstate 10 caused a fatal two-vehicle crash. Police say a van was eastbound near an exit early Friday when the driver tried to avoid the alligator. Investigators say a car rear-ended the van. Police say the driver of the car was killed and a passenger was taken to the hospital. The driver of the van is being treated for injuries at a nearby hospital. The names of those in the crash have not been released. The accident also killed the alligator.