"I am so sorry for what has happened @neneleakes," the 39-year-old television personality wrote.
"We both know the truth, we both know that if I wanted to, I could have a law suit for the lies you have spewed, tweeting out fake texts, implying I am racist, attacking me physically, claiming my daughter tweeted negative about you and your home, we both know these are lies," she said.
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Leakes also addressed her feud with Zolciak in an Instagram post Sunday, calling her former co-star a "bully."
"Kim loves to push buttons, lie, talk [expletive], insult, then become a victim when she's called out," the star wrote. "Most people would love for me to be the bully but the only bully here is Kim & her plastic surgeon!"
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