The deaths of 3 children at a house in Staines is being investigated as murder by Surrey Police and Sussex Police Major Crime Team.
Dominik, aged 3, and 2-year-old twins Nikodem and Kacper were found dead along with their father on Bremer Road last Saturday.
Police say they are not looking for anyone else in connection with the investigation.
The inquest into the death of the father, Piotr Swiderski will be opened and adjourned on Tuesday 10th September.
