NEW YORK -- Police surprised a Canadian actress accused of stalking Alec Baldwin by locking her up again Tuesday at the close of an otherwise-routine court appearance.

Authorities wouldn't discuss why Genevieve Sabourin was re-arrested in Manhattan. But a judge had ordered her to stay away from the "30 Rock" star, and there were recent media reports that she had posted angry tweets about his new wife.

"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. 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.