Police have arrested another person in connection with a house fire that led to the deaths of a mother and her three children.
An 18-year-old man was arrested last night and remains in police custody, Leicestershire Police said.
Three women and two men were arrested on Saturday over the deaths.
Earlier on Sunday, a 19-year-old man was released without charge, however an extension for further detention was granted for the other suspects.
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Sean Williams died after being struck by a car after he ran across two lanes of traffic while the lights were on green.
The accident happened on the A46 in Drayton, near to Wildmoor Spa, at around 12.30pm.