Updated at 2:35 p.m. Wednesday: A pedestrian died while crossing Interstate 30 after sunset Tuesday, according to the Dallas County Sheriff’s Department.
The man was crossing the interstate at Jim Miller Road about 7:30 p.m., when a car slammed into him. The driver of the car stopped to help, but an 18 wheeler traveling westbound also hit the man.
The 18 wheeler did not stop.
A sheriff’s spokeswoman described the victim as a white male, and said he has not yet been identified.
Original post at 9:45 p.m. Tuesday: 
Drivers may experience delays because of a major accident that shut down parts of Interstate 30 on Tuesday night.
All lanes and both shoulders are closed by the St. Francis Avenue exit near North Buckner Boulevard. The accident occurred about 7:20 p.m. and was cleared by 9 p.m.
At 9:45 p.m., traffic was still stalled and cars were being directed to the Buckner exit.
No one was transported from the scene, Dallas Fire-Rescue said.