New Delhi, Oct 7 An 82-year-old widow, her three daughters and a guard were found stabbed to death at their house in east Delhi on Saturday morning, police said. Police said the bodies bore wounds inflicted with a sharp weapon. The five were found dead in house number 1/561 on G.T. Road in Shahdara's Mansarovar Park area. The house was found ransacked but it was not known if any valuables were stolen. The deceased were identified as Urmila Jindal and her daughters Sangeeta, 56, Nupur, 48, and Anjali, 38 and the security guard, Rakesh, 42. Their neighbours informed the police about the incident around 7 a.m. Deputy Commissioner of Police Nupur Prasad said the motive behind the killings was not known. She refused to give more details about the crime as the investigation was on. The police said Urmila, a widow, was living with her three daughters. Two of them were unmarried and the eldest was also a widow. A police officer told IANS that they were looking at personal animosity and robbery angles behind the multiple murders. Preliminary investigation showed there was "no forced entry" into the house, the police officer said.