A 25-year-old woman and her live-in partner allegedly killed her parents and sister in their Bengaluru apartment on Monday night following a dispute over their relationship, police said on Tuesday.The suspects, Shwetha and Kenneth (26), have fled the city and are being traced, police said. (Representative Image/iStock)The suspects, Shwetha and Kenneth (26), have fled the city and are being traced, police said.According to the police, the couple had been living for the past two months at Sai Green Homes Apartment in Dominic Layout, Sigehalli, within the limits of the KR Puram police station.According to the preliminary investigation, an argument erupted at 7.30pm on Monday before the couple allegedly attacked all three family members with sharp-edged weapons, police said.“The initial investigation suggests that the parents objected to the couple living together. During the argument, the accused allegedly assaulted all three family members with deadly weapons and fled the scene,” a senior police officer involved in the investigation said.Police said the mother and younger daughter died inside the apartment. The father managed to leave the flat and seek help from other residents before being taken to a nearby hospital, where he later died.Also Read:Techie claims Bengaluru auto driver extorted first-time visitors, forced them to pay ₹2,400: ‘Disgrace to the city’Apartment security guard Veer Bahadur recounted seeing the family arrive days before the killings.“Two days ago, Shwetha brought her father, mother and younger sister from the village to the apartment. Yesterday evening, they went out and later came back home. Around 9pm, I came to know that something terrible had happened,” he said.Police said search teams are trying to locate the two suspects and are reviewing surveillance camera footage along with other evidence.“Search operations are underway, and we are examining CCTV footage and other evidence to track the accused,” the officer said.