Detectives investigating a house fire which killed Andrew Broadhead and his daughter Kiera in Wakefield arrested two men over the weekend.
The men aged 24 and 28 were arrested on Saturday evening in the Wakefield area on suspicion of conspiracy to murder.
The 24-year-old was bailed last night pending continuing enquiries while the 28-year-old remains in custody.
Investigations remain ongoing into the fatal house fire On Ash Crescent, Stanley, at about 4.20am on Wednesday October 19 which caused the deaths of Andrew (42) and Kiera (8) remain ongoing.
Detective Chief Inspector Nicola Bryar of the Homicide and Major Enquiry Team, said: "We are continuing to conduct extensive enquiries into the fatal fire at Ash Crescent and are continuing to appeal for witnesses."
"Anyone who has information or who saw suspicious behaviour outside the property just before 4.20am is asked to contact the Homicide and Major Enquiry Team on 101."
"Information can also be given in complete anonymity to the independent Crimestoppers charity on 0800 555 111."
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