A Brazilian wife has been arrested by local police after she allegedly murdered her husband "in self-defense" before hacking off his penis and frying it in a pan in the Brazilian city of Sao Goncalo on June 7.

The accused killer-wife, Dayane Cristina Rodrigues Machado, 33, has been charged with murder and corpse desecration following the gruesome death of partner Andre at the couple's house in the neighborhood of Santa Catarina across the Guanabara Bay from Rio de Janeiro.

Reports suggested that the couple went out to a snack bar on the night of the crime when the incident took place at around 4 a.m. on June 7 following a heated row about putting an end to their 10-year relationship.

Andre's sister, Adriana Santos, alleged that the woman killed her brother in revenge for him cheating on her, the Daily Mail reported. On the contrary, Machado's lawyer, Carla Policarpo, argued that Andre threatened to kill Machado, leaving her client no choice but to kill him in self-defense.

"He did not accept the end of the relationship and said that if she could not be with him, she could not be with anyone," Policarpo noted.

During the fight, Machado had knifed the man to death before she chopped off Andre's penis and cooked it in soybean oil in a frying pan, according to The Daily Star

Responding officers were deployed to the crime scene and recovered the victim's lifeless, naked, and mutilated body. Law enforcement also seized a kitchen knife from the scene. It was believed to be the weapon the assailant used to kill her husband and subsequently dismember him.

Machado was arrested by police at the home shortly after.

The couple had broken up two years ago but proceeded to casually meet each other on and off over the years, The Sun noted. Relatives have since unveiled that the woman and Andre were constantly in heated quarrels and that Machado had to report her husband to the police on one occasion.

The couple, who ran a pizza place together, have an eight-year-old son and a five-year-old daughter.

pizzeria A pizza shop owner was nabbed by police in Sao Goncalo after she allegedly murdered her husband "in self-defense" before knifing his penis off and frying it in a pan in Brazil on June 7. This is a representational image. PIXABAY