"Four people have been confirmed dead in an Interstate-95 bus wreck," The Richmond Times-Dispatch writes, and the northbound side of the heavily traveled route is now closed starting at Exit 98 in Virginia's Caroline County.
The Washington Post's Dr. Gridlock says "northbound traffic is being detoured at exit 98 in Hanover County, directed over to Route 1 and back to I-95 North at exit 110 in Caroline County. The lanes will remain closed through the morning rush."
Dr. Gridlock also says "the bus was not a Greyhound, as some outlets reported this morning. The Virginia State Police confirmed it was not a Greyhound, but aren't releasing the name of the bus company and its departure point or destination until family members have been notified."
Update at 10:30 a.m. ET. The Times-Dispatch now says "the northbound interstate was expected to be closed until at least noon." The newspaper adds that "most if not all" of the 53 other people on the bus were injured. The bus ran off the highway and flipped on its roof.