By Rita Chioma,

While Nigerians are trying to deal with PSquare family crisis, the Kardashians are dealing with their  own drama too.

Rob Kardashian has claimed Blac Chyna attempted to choke him with an iPhone cord during an intense fight last December, according to a new lawsuit filed by the reality star and his sister, Kylie Jenner against his ex-fiancé.

Kardashian and Jenner,  who owns the home where the alleged altercation took place, are suing Chyna for battery, assault and vandalism.

In the complaint filed Wednesday, Kardashian, 30, and Jenner, 20, claim they were forced to seek legal recourse against Chyna, 29, as they “endured several months of injuries” after Chyna’s “deliberate attempt to extort the Kardashian family for her own monetary gains.”

The complaint, obtained by PEOPLE, also claims Chyna’s relationship and decision to have a baby with Kardashian was “nothing short of an outright fraud to shake down the Kardashian family.”

Chyna is also branded a stripper that has “created a reputation as a money-hungry, shameless pseudo-celebrity”, in the complaint. In court documents, Kardashian claims that Chyna “became extremely intoxicated on drugs and alcohol and physically assaulted” him on Dec. 14, 2016.

First, Kardashian says, Chyna “conferenced” his friends on FaceTime, “and was carelessly playing with Rob’s gun unaware if the gun was loaded or if the safety was on.”

Later that night, Kardashian alleges Chyna “lunged towards Rob with an iPhone charging cable and attempted to strangle him with the cord around his neck.”

The father of one “was able to escape her grasp, however he suffered injuries to his neck” while Chyna “chased after Rob and repeatedly struck him in the head and face,” according to court documents.

The complaint says “Chyna pursued Rob outside the house as he tried to escape in his Bentley,” which caused her to throw “a nearby chair at Rob’s car causing damage to the vehicle and also used a metal rod to injure Rob.”

Kardashian claims he has documentation of the resulting neck injuries he suffered from the entire ordeal.