New Delhi, May 22 (IANS): As investigations continued on Sunday into the triple suicide case in Delhi, more details have come to the fore.

On Saturday, a 55-year-old woman and her two daughters aged 30 and 26 years were found dead at their House no.207, Vasant Apartment, Vasant Vihar.

The deceased were identified as Manju Srivastva (mother) and two daughters -- Anshika and Anku.

Deputy Commissioner of Police (southwest) Manoj C said a local resident made a PCR call at Vasant Vihar police station around 8.55 p.m. on Saturday stating that the said house is locked from inside and the people are not opening the door.

The police immediately swung into action and the Station House Officer along with other staff reached the spot and found the doors and windows closed on all sides, and the flat locked from inside.

"The police managed to open the door and found that a gas cylinder was partially opened and there was also a suicide note," the DCP said.

As the police went further to check the rooms, they found three bodies lying on the bed, along with four small traditional hearths.

The room was completely sealed with foils to prevent the fumes from the hearth leaving the room, making it impossible for the three women to escape the toxic fumes, just like a 'gas chamber death'.

"Most likely they died due to suffocation," the senior official said.

It was also learnt that the a few pages of the suicide note were affixed on the wall of the room, however, the police refrained to share the content.

"The content and veracity of the note are yet to be verified and are still under investigation," the official said, adding the inquest proceedings have been initiated.

The preliminary probe revealed that the owner of the house, Umesh Srivastva died in April 2021 due to Covid and since then the family was in depression as the mother, Manju, was bedridden due to illness.

Though there are three casualties in this particular incident, yet, it has brought the horrific memories of the Burari suicide case in which 11 members of a family died by suicide in 2018.

Ten people were found hanged, while the oldest family member, the grandmother, was strangled.