"Why am I being arrested?" she asked as she was led away in handcuffs.
Defense attorney Rick Pasacreta confirmed his client was back in custody, but he said he hadn't been informed of any new charges.
There was no immediate response to messages left with the New York Police Department. Prosecutors would say only that Sabourin was due back in court Tuesday night or Wednesday morning.
Following Sabourin's arrest on misdemeanor stalking and harassment charges in April, a judge released her on her own recognizance and issued the temporary order of protection for Baldwin.
Sabourin lives in Quebec and has acted in television and film. She and Baldwin met a decade ago on the set of "The Adventures of Pluto Nash," a sci-fi comedy in which he had a cameo and she was a publicist.
Police originally arrested Sabourin after authorities said she had implored Baldwin to see and to marry her in emails sent only days after he became engaged to yoga instructor Hilaria Thomas.
One of Sabourin's messages envisioned Baldwin as her future "husband," while another described "creating Genevieve Baldwin," a complaint said. Authorities said she also showed up at a screening he was hosting and at his apartment building.
"I just came over to see Alec because I need to speak with him," she told police, according to court documents.
Baldwin and Thomas married in June. Baldwin previously was married to actress Kim Basinger; they have a daughter, Ireland.
Another attorney for Sabourin had previously said that his client and Baldwin had a two-year relationship and that she had a "legitimate purpose" for contacting him.