This past November, O'Connor was found safe and sound after writing that she had "taken an overdose" in what appeared to be a suicidal post on her Facebook page.

Per WMAQ-TV, an NBC local affiliate, a friend of O'Connor's said she'd left Ireland in January and has been staying in the Chicago area with friends.

The mother of four has spoken openly about her ongoing battle with depression before. In a 2014 interview with Oprah Winfrey, she explained, "I don't think I was born with bipolar disorder—I believe it was created as a result of the violence I experienced...It didn't really help in terms of being well or a stable person the fact that I really was getting kicked around, metaphorically speaking, by the media for years," she says. "It seemed every time I went to work, all I was getting told was what a dreadful, terrible person I was. And I couldn't really manage all of that on top of everything else."

TMZ was first to report on the police search for O'Connor.

—Reporting by Roxana Salcedo & Linsday Good

If you or someone you know needs help, call the National Suicide Prevention Lifeline at 1-800-273-TALK (8255).



(Originally published May 16, 2016 at 11:41 a.m. PT)

