Irish singer Sinead O'Connor was found safe after a police search that began when was reported missing after she went on a bike ride Sunday in the posh Chicago suburb of Wilmette, police told NBC News on Monday.
O'Connor, 49, was last seen about 6 a.m. (7 a.m. ET) Sunday and was reported missing by a caller who "expressed concern for her well-being," Wilmette police said. They said she was found Monday and "is no longer considered a missing person."
No other details were immediately available.
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O'Connor has been staying in Wilmette, a wealthy North Shore suburb, with a friend since January, a source told NBC News.
As police searched, singer Josh Groban tweeted his hope that O'Connor is found.
"The demons she battles are no joke," he wrote.
Best known for her cover of the Prince song "Nothing Compares 2 U," O'Connor was in the news earlier this month after Arsenio Hall sued her for defamation.
Hall sued after O'Connor claimed the former late-night talk show host plied Prince with drugs over decades.
O'Connor has been treated for mental health issues. On Nov. 29, she gave her fans a scare after posting an apparent suicide threat on Facebook in which she claimed to have taken an overdose of some substance because of a "horrifying set of betrayals."
"There is only so much any woman can be expected to bear," the post read, according to Billboard and other publications. "I've taken an overdose. There is no other way to get respect."