Fairfax County Police do not know why a bus carrying elementary students to school on Tuesday morning veered off Old Dominion Drive in McLean into a roadside ditch.
The accident was reported at about 8:20 a.m. Tuesday, the first day back to school for Fairfax County Public School students.
On Tuesday morning, Fairfax County Schools spokesman John Torre confirmed that six students were riding the bus when it ran off Old Dominion Drive near Tolston Road, although no one was injured, including the driver.
Torre said he did not know the name of the driver. He was unable to confirm which local school the students were traveling to.
After the accident, all six students were unloaded off the bus and transported to school in other bus.
On Wednesday, police said no other vehicles were involved in the incident and it remains unclear what caused it.
A follow-up call to the school system on Wednesday was not returned.