London:
An Indian-origin technician and her two daughters were found dead under mysterious circumstances at their home in west London, a Scotland Yard spokesman said.
34-year-old Heena Solanki, who is a technician at a school laboratory, was found dead along with her daughters - Prish, 4, and Jasmine, 9, - at their home in Midcroft, Ruislip on Friday evening.
The Scotland Yard spokesman told PTI, "Police were called at approximately 6:40 pm on Friday. The deaths are being treated as unexplained at this stage. We are still awaiting the post mortem report".
"No arrests have been made and the Homicide and Serious Crime Command Team is investing the case," he said.
Moments after paramedics and police arrived at the house, police ordered neighbours to close all their doors and windows, saying that there had been a "chemical incident" there, according to a report.
"I saw these people go into the house in chemical suits. I couldn't believe what was going on. They were a happy family and the children were lovely little kids", a neighbour said.
Another neighbour who did not want to be named, said, "Last night the police were knocking on doors telling everyone to get inside and close their windows because there had been a chemical incident".
Witnesses said police had also taken away what appeared to be a suitcase and a series of tubes.
The police removed an evidence bag marked 'caution health hazard', the Mirror reported.
Some media reports claimed that Heena poisoned her daughters before killing herself in what police is terming a "toxic chemical reaction". Heena worked at a secondary school and would have known how to brew a killer concoction of chemicals, the reports added.
Heena lived with her 42-year-old husband Kalpesh's parents who had been on a holiday when the incident occurred. Meanwhile, contradictory reports emerged in the local media with some saying Kalpesh made the grim discovery of their bodies when he returned home while some claiming neighbours called the police fearing a gas leak.
Heena's Facebook page states she studied at South Gujarat University until 2002.