Reid's wife, Landra, 69, and his daughter, Lana Reid-Barringer, 48, sustained serious but not life-threatening injuries, Jon Summers, a spokesman for Sen. Reid, D-Nev., said in a statement, The Washington Post reported.
"Mrs. Reid has a broken nose, broken back and broken neck," the statement said. "Lana has a neck injury and facial lacerations. Both Mrs. Reid and Lana are conscious, can feel their extremities, and according to doctors their injuries are non-life threatening."
Landra Reid and Reid-Barranger were being treated at Inova Fairfax Hospital in Falls Church, Va. The drivers of two other vehicles involved in the collision were being transported to a hospital with non-life-threatening injuries, the Post said.
The collision occurred Thursday afternoon in heavy traffic on Interstate 95 in Fairfax County, Va. Police said the minivan Landra and Lana Reid were riding in was rear-ended and crushed by a fully loaded tractor-trailer.
Virginia State Police spokeswoman Corinne Geller said Reid-Barringer was driving and stopped for traffic ahead of her when the tractor-trailer rammed her minivan, driving it into the vehicle ahead of it, which was then driven into another vehicle.
Harry Reid was called out of a meeting and rushed to the hospital, but aides said he would return to the Senate Thursday evening.
Interpol investigating stolen passports on missing flight
Susan Sarandon 'very excited' about daughter's pregnancy