Botetourt County Sheriff's Office

A security camera captured this image of a person near the Jamison Avenue pay phone that was used to call in threats at two Botetourt County schools.

Botetourt County authorities are continuing their investigation of telephone threats that led to the evacuations of Eagle Rock Elementary and James River High School on Wednesday afternoon.

The two calls -- which warned of a bomb in the elementary school and referenced a nonspecific danger at James River -- came about 11 a.m. from a pay phone at the Unimart on Jamison Avenue in Southeast Roanoke, according to Botetourt County Sheriff Ronnie Sprinkle.

Thursday, the sheriff's office released images taken by a security camera near the Jamison Avenue phone at the time the calls were placed. The pictures were recorded by a motion-activated camera and show a male figure walking across a parking lot, toward the pay phone, at 11:05 a.m. He then heads back in the opposite direction at 11:10 a.m. The camera stops recording before the subject disappears from the frame and it remains unclear how he left the scene.

The person is wearing what appears to be dark overalls and has either a white sweatshirt hood or white stocking cap covering most of his head.

More than 600 students were affected by the threats, and authorities worked for three hours searching the schools before determining there was no danger.

Anyone with information about this incident or the person in the security footage is asked to call the Botetourt County Sheriff's Office at 473-8230.