Themis Matsoukas, a professor of chemical engineering, was taken into custody on Monday and charged with one count each of $exual intercourse with an animal, cruelty to animals, indecent exposure, open lewdness, and disorderly conduct, court records reviewed by Law&Crime show.

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In an email to Law&Crime, a spokesperson for the University wrote that Matsoukas “has been relieved of his responsibilities and is on leave” following his arrest.

According to a criminal complaint filed by the Pennsylvania Department of Conservation and Natural Resources (DCNR), the agency on installed a trail camera in the Alan Seeger Natural Area parking on April 12 in response to bags of hand sanitizer being stolen from the public bathrooms, Penn State’s student-run news website Onward State reported.

It didn’t take long for the new camera to allegedly capture shocking footage of Matsoukas, the 2017 recipient of the Premier Teaching Award from the Penn State Engineering Alumni Society.

A man — later identified as Matsoukas — can reportedly be seen on camera at about 8 p.m. on April 13 walking around with his pet collie wearing nothing but a ski mask, a North Face backpack, boots, and a wristwatch. The man can allegedly be seen masturbating in an area near the women’s public restroom before “engaging in a $exual act with the dog.” The man also appeared to be using a silver iPad to record himself performing the indecent act on the animal.

Investigators reached out to two people who own private camps in the area, both of whom provided rangers with photos from their own trail cameras of a man — later confirmed to be Matsoukas — walking around in the area wearing the same North Face backpack, naked from the waist down except for shoes, Alton CBS affiliate WTAJ-TV reported. Investigators reportedly obtained a total of six images dating back to 2014 allegedly showing Matsoukas walking around the area in the nude.