Cardi B posted a lengthy message on Instagram following reports of an altercation with Nicki Minaj.
The rappers, who have been involved in a long-running feud, are said to have argued at the Harper’s Bazaar’s party at New York Fashion Week on Friday.
A video emerged on Twitter appearing to show a disturbance at the event, though it was unclear who was involved.
Hours after the alleged argument, Cardi B posted on Instagram. Although she does not name her fellow rapper directly, Cardi B referenced their feud, saying she has confronted Minaj in person twice only for her rival to deny any wrongdoing.
Cardi B, 25, gave birth to a daughter in July, Kulture, and alleged Minaj, 35, had been liking comments disparaging her skills as a mother.
She wrote: “I’ve let a lot of shit slide! I let you sneak diss me, I let you lie on me, I let you attempt to stop my bags, f*** up the way I eat! You’ve threaten (sic) other artists in the industry, told them if they work with me you’ll stop f****** with them!!
“I let you talk big shit about me!! I addressed you once in person, I addressed you a second time in person, and every time you copped the plea!! But when you mention my child, you choose to like comments about me as a mother, make comments about my abilities to take care of my daughter is when all bets are f****** off!!
“I’ve worked to (sic) hard and come too far to let anybody f*** with my success!!!!”
Minaj, real name Onika Maraj, and Cardi B, real name Belcalis Almanzar, are said to have had bad blood since 2017.
The party, held at The Plaza Hotel, was attended by multiple celebrities, including Christina Aguilera, who had performed earlier in the evening.
Also present were Kendall Jenner, Bella Hadid and Heidi Klum, among others.