The Transportation Department issued a subpoena to New York as federal investigators probe a deadly Interstate 95 bus crash in Virginia, accusing the state of failing to provide records related to the commercial driver’s license of the driver involved in the wreck.

The subpoena, issued by the Federal Motor Carrier Safety Administration and obtained by the Washington Examiner, demands that the New York State Department of Motor Vehicles turn over documents connected to Jing Sheng Dong, the commercial bus driver believed to have been operating the vehicle involved in a multivehicle crash on Friday in Stafford County, Virginia.