Fifi Geldof took to social media Thursday to complain about the media’s coverage of her younger sister, Peaches Geldof. On Wednesday, it was revealed that Peaches, 25, died earlier this year because of a heroin overdose.

As previously reported, a coroner officially concluded that a heroin overdose was the cause of death. Peaches had stopped using heroin for two years, but recently began using again and tried her best to hide it from her husband, Thomas Cohen. Peaches left behind their 11-month-old son, Phaedra.

According to Us Weekly, Fifi, the oldest daughter of musician Bob Geldof, took to Instagram to post an expletive-laced rant against media coverage of Peaches’ death.

“Don't keep calm and f--- this," Fifi, 31, wrote on her private Instagram page Wednesday. "F--- that. F--- you. F--- off...Sums it up nicely about how I’m feeling about the viciousness today. Maybe now she’ll be allowed to RIP."

Fifi was taking direct aim at The Sun’s Katie Hopkins, who criticized Peaches for using drugs in front of her young child. Hopkins recalled how she argued with Peaches on a U.K. show about parenting.

“She pointed out my failings as a mum. I’ll admit my flaws are many,” Hopkins wrote. “Just as we all suspected, Peaches died of an overdose, slumped over her bed, surrounded by the stuff of an addict, syringe, knotted tights, burned spoon — and an 11-month-old child...I have kept my silence about the truth of the woman. But frankly, enough is enough.”

Fifi also lashed out on Instagram after other users said they agreed with Hopkins. However, she did thank the fans that have been supportive of the family.

image via Twitter from The Sun

image courtesy of INFphoto.com