New video of Kony 2012 documentary maker Jason Russell naked, screaming and pounding the pavement has emerged.
Russell, who is co-founder of the charity Invisible Children, is in psychiatric care after the incident on Friday.
Close-up footage of the evangelical Christian ranting about the devil has been posted exclusively on TMZ. It shows the nude father-of-two thumping the ground, gesticulating and clapping.
Witnesses to the incident have also claimed he vandalised cars and masturbated in public.
Russell was not arrested but was detained by San Diego police and is on a “5150” hold as authorities determine if he poses a danger to himself or others.
The 30-year-old is the mastermind responsible for the 30-minute documentary which details the ongoing conflict in Uganda and the plight of child soldiers.
Click here for video of alleged incident. WARNING: Video provided by TMZ contains nudity.
On Saturday Russell's wife Danica released a statement to the charity's supporters, saying: "Thank you to everyone concerned with Jason and his health. Jason has dedicated his adult life to this cause, leading up to KONY 2012.
"We thought a few thousand people would see the film, but in less than a week, millions of people around the world saw it. While that attention was great for raising awareness about Joseph Kony, it also brought a lot of attention to Jason - and, because of how personal the film is, many of the attacks against it were also very personal, and Jason took them very hard.
"He did some irrational things brought on by extreme exhaustion. On our end, the focus remains only on his health, and protecting our family. We’ll take care of Jason, you take care of the work."
An online statement from Invisible Children CEO Ben Keesey last week said: “Jason Russell was unfortunately hospitalized yesterday suffering from exhaustion, dehydration, and malnutrition.
“He is now receiving medical care and is focused on getting better. The past two weeks have taken a severe emotional toll on all of us, Jason especially, and that toll manifested itself in an unfortunate incident yesterday.
“Jason’s passion and his work have done so much to help so many, and we are devastated to see him dealing with this personal health issue. We will always love and support Jason, and we ask that you give his entire family privacy during this difficult time.”
Named after Joseph Kony, the leader of the Lord’s Resistance Army (LRA), Kony 2012 shows the war-torn country through the eyes of a former LRA child soldier called Jacob.
More than 30,000 children are believed to have been abducted by the rebel group, with the male children being forced to bear arms, and the females being used as sex slaves. The group has also slaughtered hundreds of thousands of civilians in central Africa.
Invisible Children is calling for an international effort to arrest Kony, disarm the LRA and bring the child soldiers home.
A statement on the website reads: "We seek to rebuild schools, educate future leaders and provide jobs in Northern Uganda. We are the motivated misfits and masses redefining what it means to be an activist."
Kony, a former altar boy, is wanted on 33 criminal charges, including 12 counts of crimes against humanity, murder, enslavement and rape.
The LRA began its attacks in Uganda in the 1980s, when Kony sought to overthrow the government. Since being pushed out of Uganda several years ago, the militia has terrorised villages in Central Africa, AP reported.
The film, which features Russell and his son Gavin, has been viewed more than 100 million times.
Celebrities including Angelina Jolie, Rihanna, Nicole Ritchie and Stephen Fry have all backed the campaign.