Updated 9:21 a.m.

GREENSBORO — Eight Guilford County school buses were shot at over the weekend while parked at Southern Guilford High School, officials said.

Some time between Friday afternoon and when bus drivers got to the school Monday morning someone drove by the school at 5700 Drake Road and fired at the buses, said Sgt. David Poston with the Guilford County Sheriff's Office.

The damage was discovered Monday morning when a driver tried to start one of the buses and was unable to, Poston said.

Although the bullets only struck windows in seven of the buses, in the eighth bus, a bullet struck an ignition or starter wire, he said.

Guilford County Schools did not have an estimate of the damage Monday afternoon.

The sheriff's office is looking at the school's cameras to see if the shooting was captured on video, Poston said. The buses that were damaged were those closest to the road.

He said he is uncertain of the number of rounds that were fired, but said it was likely done by a rifle, given the distance from the road to the buses and the damage done.

The sheriff's office did not have any suspects Monday afternoon.

The eight buses were not used to pick up students Monday morning, said Nora Shoptaw, spokeswoman for Guilford County Schools. Replacement buses will be used while the buses are being repaired.

A Connect Ed message was sent to all parents at the high school to notify them there would be a delay in picking up some of the students.

Posted 8:39 a.m.

GREENSBORO — Eight buses at Southern Guilford High School were damaged over the weekend.

School officials discovered the damaged buses this morning, said Nora Shoptaw, spokesperson with Guilford County Schools. She said it appears the buses were shot.

The school is located at 5700 Drake Road in the southern portion of the county.

Shoptaw didn't have the extent of the damage to the buses, but said, "some was very significant."

Replacement buses are being used to transport students today, Shoptaw said. A Connect Ed message was sent to parents to let them know there would be a delay in picking up some of the students.

The Guilford County Sheriff's Office is investigating the incident.

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Contact Sarah Newell Williamson at (336) 373-7076, and follow @snewell_NR on Twitter.