Video! 'Kony 2012' Co-Founder Jason Russell's Naked Meltdown

"Kony 2012" boss Jason Russell had a naked public meltdown in San Diego -- pounding his fists on the sidewalk and screaming angrily as cars passed him on the street. (Warning: video contains graphic content.)

According to TMZ, Russell was detained by police on Thursday after witnesses claimed he was "running around naked and making sexual gestures."

Jason was placed on a psychiatric hold and is being examined to determine if he is a danger to himself or others.

A rep for Invisible Children, the foundation behind "Kony 2012" said Russell was suffering from exhaustion, dehydration and malnutrition as a result of the stress from the campaign.

UPDATE: Russell's wife, Danica, issued a statement, saying, "Let us say up front that Jason has never had a substance abuse or drinking problem, and this episode wasn't caused by either of those things. But yes, he did some irrational things brought on by extreme exhaustion and dehydration."