Three men arrested on suspicion of murder after a fatal flat fire killed a mother, her baby and a family friend in Derbyshire, were known to at least one of the victims, ITV News understands.
The arrests come after neighbours reported disturbances in the street the day before the blaze which killed Amy Smith, 17, her six-month-old daughter Ruby-Grace Gaunt, and Edward Green, also 17, in Langley Mill.
Police have confirmed a 17-year-old youth rescued from the blaze by neighbours, along with the baby's 18-year-old father Shaun Gaunt, was not among those arrested.
A 17-year-old youth from Long Eaton has been arrested on suspicion of murder along with a 43-year-old and a 21-year-old from Sandiacre. Two of the men are understood to be related to each other.
Police and fire crews are continuing to investigate whether the fire was started deliberately.
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