Los Angeles - Sinead O'Connor is suing her family.
The 49-year-old Irish singer - who was reported missing on Monday after failing to return from a bike ride the day before in Wilmette, a suburb about 15 miles north of Chicago, but has now been found staying with friends - has blamed her ex-partner John Reynolds and their son Jake, 28, for her disappearance.
The mother of four - who also has children Roisin, 20, Shane, 12, and nine-year-old Yeshua - took to social media to threaten her relatives.
In a Facebook page presented as an open letter to John but seemed to address Jake in several places, she wrote: "None of you will ever see me again because of what you've done. If I manage not to kill myself, you'll be paying the medical costs which have been and will continue to be involved with that, since you were and remain. the chief co-ordinator of my total psychological and emotional destruction.
"And I will still never return to you or any of my four children, because of you. So fucking live with that. Explain to Shane and Yeshua why Mum vanished. You unchristian, ungrateful, lying, criminal.
"YOu murdered your mother one way or the other. You drove her from her life so she had to run to another continent just to stay alive. You made her leave her babies and then you left them. YOU are the one who needs a fucking psychiatrist. All of you.
"I will see you all in court. I want damages. I have been unable to work. I have lost last year's income and this year's. I have had enormous medical expenses, and enormous trauma because of your torturing of me.
"As I said. You fucking best pray God kills me because unlike my poor mother, I will not let this drop. We are all going to court and we are gonna have this out in full public for once and for all."