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.
More top news
Emergency services are attending a massive shop explosion in Leicester. Witnesses say the debris was "blasting across carriageways".
Emergency services have declared a "major incident" in Leicester following reports of an explosion.
Police investigating the murder of man in Leicester on Saturday morning are urging motorists who were in the area to get in touch.