"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.
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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