Investigators have narrowed down the location of faulty electrics which sparked a fatal house fire in Derbyshire last week.
Experts say the wiring which caused the blaze was situated between the ground and first floor of the house in North Wingfield.
Two young boys, their mother and a family friend were all killed in the fire, which happened on November 20.
A spokesman for Derbyshire Fire & Rescue Service said:
We would once again like to convey our thoughts and sympathy to the families of the deceased at this very distressing time.
More top news
Ash Green School near Coventry faces a clean up operation on its sports pitches after travellers reportedly moved onto the grounds.
A drunken man who attacked a pensioner, punching her repeatedly and breaking her nose, has been jailed for two years.
“My brother was quiet, he was kind. “It was his dream to come to England ... and to improve our family’s situation.”