Chicago police are searching for Sinead O'Connor once again, following an alert that the "Nothing Compares 2 U" singer has indicated that she was suicidal.

A spokesperson for the Chicago Police Department told TheWrap that all on-duty officers have been instructed to keep an eye out for O'Connor and have been instructed to attempt to speak to her if they see the troubled star.

According to the Chicago P.D., a police officer from Ireland called the department, telling them that O'Connor had contacted Irish authorities saying that she is on a bridge in the area.

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Police scanner audio published by TMZ indicates "a threat of suicide" slightly after 5 p.m. CT.

According to the audio, a police sergeant in Dublin informed Chicago police that O'Connor had called and said, "I'm on a bridge in Chicago and I'm going to jump."

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This isn't the first time that the 49-year-old has threatened suicide. In November, O'Connor claimed in a Facebook post that she'd taken an overdose.

"There is no other way to get respect," the singer wrote at the time. "If I wasn't posting this, my kids and family wouldn't even find out."

In May, police in Wilmette, Illinois, embarked on a search for O'Connor after she went missing for more than 24 hours. She had reportedly gone on a bicycle ride out of the city and did not return more than a day later.

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Listen to the scanner audio below.

Read original story Sinead O'Connor Suicide Threat: Chicago Police on the Lookout for Troubled Singer At TheWrap