Police are investigating the sexual assault of a female student in the Kelly Walsh parking lot on Monday as a random crime.
The student did not know the assailant, Sgt. Mike Ogden said, and police continued to search for him Monday afternoon.
The assault took place at 11:45 a.m., police said. Ogden said he did not believe the student was physically injured during the attack.
The assailant was last seen running north away from the school, which is on the east side of Casper. The assailant is described as a white male, 6 feet tall, 180 pounds with a gray t-shirt and faded jeans. He has unshaven gray facial hair.
So far, the police investigation has not found any other witnesses to the assault and there is no known surveillance images of the area, Ogden said.
Police had extra officers patrolling the area and other schools, and Ogden said the additional presence will likely remain today unless the assailant is located.
In a Facebook post, the Natrona County School District said the student reported the incident to an adult and district officials immediately called police. Spokeswoman Tanya Southerland said no area schools were placed on lockout, though they were on “heightened awareness.” Officials in those buildings were told they could go into a lockout situation if they felt it was necessary.
She said the district let families know as soon as they had information from the police. She said authorities had to conduct an investigation before they had information to pass to school officials, which, she said, district officials promptly released to the broader community.
Anyone with information is asked to contact the Casper Police Department at 307-235-8278.