Four family members found dead in a flat in west London, including two children, have been named by police.
The Metropolitan police launched an investigation after the four bodies were discovered at a property in Hounslow on Friday afternoon.
The force said on Saturday that, although formal identification was yet to take place, the bodies were believed to be those of Michal Wlodarczyk, 39, Monika Wlodarczyk, 35, Maja Wlodarczyk, 11, and Dawid Wlodarczyk, three.
Officers forced their way into the property shortly after 3pm on Friday after concerns were raised for the welfare of the occupants of the property in Staines Road, Bedfont.
Det Ch Insp Linda Bradley, who is leading the investigation, said: “I would like to assure the community that specialist detectives are working to establish the circumstances which led to this tragic incident and we will provide further updates as soon as appropriate.
“Our thoughts are with everyone who has been affected by what has happened.”
Their next of kin have been informed and are being supported by family liaison officers.
A police officer stood outside the property on Saturday as forensic investigators, wearing masks and gloves, worked at the scene.
A neighbour, who did not wish to be named, told reporters: “They were just normal neighbours. We just had greetings here and there, that kind of stuff.
“I came home from work and there were police everywhere. It was really busy. Nothing like that happens here. I have no idea what happened.”