The turbulence continues for the Pratt family.

On Tuesday,The Hills: New Beginningsstar Stephanie Pratt unleashed her fury against brotherSpencer Prattand his wife,Heidi Montag— both of whom she has feuded with for years — in a lengthy Instagram post.

At the beginning of her post, Stephanie, 33, revealed she was back in London, where she lived prior to returning to California for filming ofThe Hillsreboot. After saying that “evil siblings” did not exist in London, she went on the offensive against her brother and sister-in-law.

“Spencer often screamed that everyone hates me, is fake nice to me and to go back to London because no one wants me here,” she wrote. “Omg and Heidi- I have no words for how evil you truly are- you had no choice to admit all of the lies you’ve been spewing about me was for a magazine cover 🙈 and for real WE ALL KNOW WHAT YOU DID 10 years ago. You awful human being- and to your BEST FRIEND? You are truly a hideous person. No wonder you don’t have 1 friend (your nanny doesn’t count- you pay her).”

Stephanie’s “best friend” reference likely refers to the originalThe Hillsseries, which saw the downfall of Montag’s friendship withLauren Conrad.

“No one plays a better victim than you,” Stephanie wrote of Patridge, 34. “(OMG you actually should go into acting)!!! Ughhh and all the months you spent trying to get all of the girls against me… I mean thats Speidi’s job!!! Truth: I did not watch last nights episode Bc I didn’t want to re-live my ‘friend’ attacking my character & making up lies about me when I have ALWAYS been a good friend to you.”

Heidi Montag, Stephanie Pratt, Spencer Pratt.Michael Tran/WireImage

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While Montag did not directly comment on her sister-in-law’s post, she didshare a cryptic photoon Instagram of a rainbow, with the caption, “Don’t be hateful to people, just because they are hateful to you. Rather, be good to each other and to everyone else.”

Ahead ofThe Hills: New Beginningspremiere, Stephanie claimed on her IHeartRadio’sPratt Cast podcastin April that “no one knows the real Heidi,” and that she and her brother, 35,were no longer on speaking terms.

source: people.com