Amy Winehouse's father Mitch said Peaches Geldof's death was an awful time for him because it reminded him of his daughter's tragic demise.
Mitch, 63, compared the two deaths and said both stars appeared to be on the up, reported Daily Mirror.
"Bob Geldof hasn't been in contact. I wouldn't know what to say to him, it's so sad. She was a beautiful girl and had two wonderful kids.
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"But that is the nature of addiction, that becomes the greatest love of their life and Bob probably knows that. It's terrible, especially what happened to Peaches mum," he said.
Amy died aged 27 in 2011 of alcohol poisoning from binge drinking following a period of abstinance.
And Geldof, who was 24, died in April from a heroin overdose even though friends and family believed she had turned her life around.
