UPDATE:
LOS ANGELES (AP) - For several hours Monday, music lovers believed Tom Petty was dead.
Courtney Love, Talib Kweli, Kid Rock, Cyndi Lauper, Paul Stanley and Lin-Manuel Miranda were among scores of fans posting remembrances on Twitter, where Petty was the top worldwide trending topic Monday afternoon. A memorial was scheduled for his star on the Hollywood Walk of Fame.
But the 66-year-old entertainer is still alive at the time, and news outlets that announced his death Monday were forced to retract their stories. The Walk of Fame tribute was canceled.
The reports, as it turned out, were merely premature. Petty's publicist confirmed late Monday that the rocker died at 8:40 p.m. after having suffered cardiac arrest.
The unusual chain of events led some to quip online that Petty went out in true rock star fashion - by dying twice in one day.
The confusion started with CBS News and the Los Angeles Police Department. CBS published Petty's obituary after tweeting that the LAPD had confirmed his death. The trade paper Variety followed, citing an unnamed source confirming the rocker's death.
Then the LAPD issued a statement saying it has no information on Petty's condition and that "initial information was inadvertently provided to some media sources."
"We apologize for any inconvenience in this reporting," the department said.
CBS and Variety amended their stories. CBS News also released a statement maintaining that it "reported information obtained officially from the LAPD about Tom Petty."
"The LAPD later said it was not in a position to confirm information about the singer," the statement said.
Both CBS and Variety now cite TMZ reporting that says Petty is "clinging to life" after suffering cardiac arrest.
An LAPD spokesman said in an interview Monday that its spokespeople did not respond to any incident involving Petty. Officer Tony Im said he could not rule out that someone in the department spoke to reporters, but said the LAPD has no investigative role in the matter.
Coroner's officials said Monday they have not received a report of Petty's death. Fire officials have said they responded to an emergency call for a man experiencing cardiac arrest on the block where Petty lives in Malibu on Sunday night, but could not confirm it was the rocker who was taken to a local hospital.
Petty's manager did not respond to emails and phone calls seeking comment Monday.
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ORIGINAL STORY: LOS ANGELES - Tom Petty was taken to UCLA Medical Center for a cardiac incident Sunday night, law enforcement has confirmed to the Los Angeles Times, but as of Monday afternoon there was no official confirmation that the 66-year-old rock musician had died.
The Los Angeles Police Department, which had been cited in a report by CBS News and subsequently by other outlets that picked up the CBS story, tweeted Monday afternoon that "initial information was inadvertently provided to some media sources."
CBS updated its report even as the likes of John Mayer, Jake Owen and Peter Frampton - not to mention multitudes of non-celebrity fans - were sharing their sadness and Tom Petty memories on social media.
Earlier Monday, an LAPD spokesperson told the Times that the department had no role in the matter because no crime had been committed.
At noon Pacific time Monday, TMZ reported that Petty had been rushed to the hospital. It updated its story a half hour later, saying a decision had been made to pull life support. An hour after that, it reported Petty was "still clinging to life," though a chaplain had been called in.