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Police: Sinead O'Connor has been located

The search is off for Sinead O'Connor.

Police in Wilmette, Illinois announced on Monday that they had located the singer after they were looking for her to check on her well-being. O'Connor is safe and no longer listed as a missing or endangered person, CBS News has confirmed.

Police earlier sent out a statement on Monday saying the singer had not been seen since she left the Wilmette area for a bicycle ride at 6 a.m. on Sunday.

On Sunday, O'Connor posted a cryptic note on Facebook after she was last seen, apparently threatening her son, Jake Reynolds.

She wrote that Reynolds and her ex Donal Lunny took her son Shane Lunny from her. She wrote an open letter to Shane on Friday, advising him to get a solicitor of his own and that his father and Reynolds are "not [his] boss." In November, the singer accused Donal of "withholding" her child from her.

O'Connor wrote on Sunday, "Jake, kindly go to the court on Tuesday and take custody your brother from Tusla. My lawyer will be making the illegal way yourself and Donal got him into Tusla (lying to the cops etc) known to the judge. expect to be in trouble. In fact you'd best bring a lawyer of your own. And do not abandon your brother or any other of my babies again. What you have done to your brother and your mother is LITERALLY criminal."

The singer has had a very troubled past year and has talked openly about her family matters. In November, she alarmed fans when she wrote what appeared to be a suicide note on Facebook, during which she said she had taken an overdose and blamed her family and ex-partner for their "betrayal." She was subsequently hospitalized.

In December, she wrote another troubling note on Facebook, begging her children to come visit her.Most recently, O'Connor made headlines earlier in May when she accused Arsenio Hall of giving Prince drugs. Hall said he is suing the singer for libel.

The singer has spoken publicly before about her bipolar diagnosis, which she received more than a decade ago. She spoke with Oprah Winfrey in 2007 and said that she had struggled with anxiety and suicidal thoughts before her diagnosis, and that while medication was helping her, "it's a work in progress."

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