A fight broke out between Cardi B and Nicki Minaj at a New York Fashion Week party on Friday night, TMZ reports. Both women were in attendance at the Harper’s Bazaar ICONS celebration at the Plaza Hotel.

The altercation was reportedly spurned by comments about Cardi’s daughter, Kulture.

An insider tells PEOPLE that Cardi arrived at the event first. After Nicki showed up, there was an “altercation” on the second-floor balcony during a Christina Aguilera performance.

“The scene was f—— crazy,” the insider tells PEOPLE. “It was entourage against entourage.”

“They had their altercation on the second-floor balcony, right above the red carpet. All of the sudden there was a big commotion and everyone didn’t know what was going on.”

Immediately following the incident, Cardi was escorted out by security while Nicki stayed inside. Cardi was seen leaving the party barefoot with a large lump on her forehead.

“She left barefoot with her dress ripped and butt out,” source said.

Videos of the incident were posted on social media. In one video, Cardi B can be seen making a lunge towards someone, though it is not entirely clear if its the “Barbie Dreams” rapper.

See below

CARDI B AND NICKI MINAJ FIGHT pic.twitter.com/Y3vDRmBwMq

— Mihaela (@mihaeladxl) September 8, 2018

In another video obtained by Cosmopolitan, Cardi can be seen removing her shoe as she repetitively screams, “I will f— you up!”

Cardi is then seen throwing her shoe before she is dragged away while yelling that people were talking about her daughter.

Cardi later wrote a long scathing Instagram post which she entitled “PERIOD” which did not mention Nicki by name but suggested Nicki had tried to sabotage Cardi’s career and also spoken about the rapper’s daughter, Kulture Kiari.

“I’ve let a lot of s— 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 other artists in the industry, told them if they work with me you’ll stop f—— with them!! I let you talk big s— about me!!” she wrote.

“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!!!! B!tches talk all that s— in they raps but in real life they pu$$y!! This s— really is for entertainment.

The incident follows months of simmering tension between the artists. On the opening track of her new album Queen, Nicki raps that she’ll “bury the Bardi.” Last month at the VMAs, Cardi responded to Nicki’s repeated claims that her success has been paid for in her acceptance speech for Best New Artist: “that’s something money can’t buy, B!tch.”

See the video below;

Nicki Minaj and Cardi B getting it lit at fashion shows . pic.twitter.com/BTTPv6M9Su

— DJ Akademiks (@IamAkademiks) September 8, 2018