A March 26 accident on Interstate 65 in Kentucky left 11 dead after a tractor-trailer crossed the median, then collided with a passenger van before it crashed into a rock wall and caught fire.
Investigators do not yet know why the truck crossed the median, said Trooper Charles Swiney of the Kentucky State Police. Two children, ages 4 and 5, survived the accident.
The crash involving the 15-seat passenger van occurred at 5:15 a.m. CDT near Munfordville, Ky. according to the National Transportation Safety Board.
Julie Oaks, a Tennessee transportation department spokeswoman, reported the interstate reopened in the afternoon. The initial accident at I-65 northbound at mile marker 63 had been cleared, only to be followed by a second crash on I-65 northbound at mile marker 44, which resulted in the interstate being reduced to one lane.
Kentucky Gov. Steve Beshear released a statement of sympathy to surviving family members involved in the accident. The Kentucky Transportation Cabinet, Division of Emergency Management, Public Health Department, Department for Environmental Protection and Kentucky State Police among others are working with the NTSB and local emergency responders to investigate the crash.