A bus crash on I-95 in Virginia in May left four people dead.
Virginia State Police say driver fatigue contributed to the crash. The driver, 37-year-old Kin Yiu Cheng, suffered minor injuries from the accident.
After reviewing Sky Express Incorporated, the U.S. Department of Transportation has issued an out-of-service order to the company, citing numerous safety violations.
According to Federal Motor Carrier Safety Administration records, Sky Express buses have been involved in four crashes, with one injury or fatality during the two-year period that ended May 20.
Drivers with Charlotte-based Sky Express have been cited for 17 unsafe-driving violations, including eight speeding violations since 2009, according to the Associated Press. Records show the company was cited for 46 violations related to fatigued driving, including three that were classified as serious.
State Police say four people died Tuesday and several were injured in the crash, which occurred just before 5 a.m. in Caroline County. The accident occurred in mile 103 of the highway, just south of the Carmel Church exit.
Eight people were transported to a hospital in Spotsylvania County, according to NBC4.
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