Essex Police say 50 officers and special staff are continuing to investigate the cause of a fatal house fire in Harlow.
Dr Sabah Usmani and her five children were killed in the blaze last week. Their father, Dr Abdul Shakoor, was the only survivor.
Essex Police say they expect the full forensic results to be available by Thursday of this week, but that because of the importance of the case a second independent forensic expert will also look at the findings. The force will not release anything until they get these findings back.
Detectives investigating a house fire which killed six members of the same family are treating the deaths as murder, police said tonight.
Essex Police have said a house in Harlow that killed six members of the same family is now being treated as a murder investigation.
Police are asking people with private CCTV cameras to check for clues on how a fire that killed six members of one family started