The two collaborators on Shia LaBeouf's art installation #IAmSorry have come forward to confirm the actor's accusation that a woman raped him during the exhibition.

LaBeouf made the startling admission during a series of emails with a journalist from Dazed. The alleged assault took place during his 5-day art event in Los Angeles in February.

"As soon as we were aware of the incident starting to occur, we put a stop to it and ensured that the woman left," tweeted Nastja Säde Rönkkö, who brought guests through the curtain and into the room with LaBeouf.

Rönkkö stressed in another tweet that "Nowhere did it state that people could do whatever they wanted to Shia during #IAMSORRY" event.

The "Fury" actor gave a detailed account of the alleged assault.

"One woman who came with her boyfriend, who was outside the door when this happened, whipped my legs for ten minutes and then stripped my clothing and proceeded to rape me," the 28-year-old actor said.

Before sitting with LaBeouf, guests could grab one item off a table in the conjoining room. The props included a "Transformers" toy, Hershey's kisses and a whip (to signify his performance in "Indiana Jones and the Crystal Skull").

"There were hundreds of people in line when she walked out with disheveled hair and smudged lipstick. It was no good, not just for me but her man as well," LaBeouf said.

Piers Morgan tweeted at Luke Turner, another collaborator, to ask why he allowed the woman to walk away.

"It wasn't clear at the time precisely what had happened, & the 1st priority was to ensure everybody's safety in the gallery," Turner responded. "She ran out, rather than simply walking away."

News of the woman's appearance and alleged actions spread through the waiting line, which included LaBeouf's girlfriend Mia Goth. She had come to visit him for Valentine's Day.

"I was living in the gallery for the duration of the event - we were separated for five days, no communication. So it really hurt her as well," the former Disney star said. "When she came in she asked for an explanation, and I couldn't speak, so we both sat with this unexplained trauma silently. It was painful."

LaBeouf hosted the event after he was caught plagiarizing a short comic by Daniel Clowes. He wore a paper bag over his head that read "I Am Not Famous Anymore," the same one he had worn earlier at the Berlin Film Festival.