The Adult World star was arrested July 7 in Montreal after authorities were called to the hotel room she was sharing with boyfriend Evan Peters and found both with injuries, law enforcement sources tell E! News.
Montreal Police received a call at around 2 a.m. from another guest at the hotel reporting a conflict in a nearby room.
Based on witness statements, Roberts was arrested. She was later released without incident and no charges were filed, sources say.
"It was an unfortunate incident and misunderstanding. Ms. Roberts was released after questioning and the couple are working together to move past it," reps for the actors tell E! News in a joint statement.
Meanwhile, a source tells E! that the oft-cuddly couple are still together.
While Peters' only tweet since the incident has been a photo of a Starbucks drink labeled "Kevin" instead of Evan, he tweeted June 26, "Ripping it up at cars land with the love of my life @robertsemma."
She, however, has been tweeting up a storm since, her latest coming this afternoon: "Thank you @delta for the worst travel experience! But so happy to finally get here."
Roberts and Peters have been an item at least since Valentine's Day, when they were spotted making out during a screening of Safe Haven at The Grove in L.A.
—Additional reporting by Baker Machado