WILLIS, Texas -- The head coach and athletic director at Willis High School is being investigated for an inappropriate picture, officials told KPRC Local 2 Wednesday.

Earlier this year, school employees with the Willis Independent School District took a photograph that allegedly shows two men exposing themselves to another man who appeared to be sleeping, the station reported.

The school district has been investigating the incident for three weeks.

School officials would not say exactly who was involved, but the Willis High School coach and athletic director was recently placed on paid administrative leave.

He was not available for comment.

"We expect our people to be professionals," Superintendent Brian Zemlicka said. "We're all educators -- from the newest member to the one with the most seniority. We're all educators and, in the public, we're held to a higher standard and we need to try and live up to that."

No one else has been disciplined.

No students were involved in the incident, officials said.