A three-year-old girl who died on her way to hospital had suffered serious internal injuries, police have confirmed.
Detective Chief Inspector Stuart Dixon, one of the team of 30 officers leading the murder inquiry, said a post-mortem of Lia Green had confirmed the injuries had been “caused by violence.”
Ambulance crews were called to the family’s home on Norris Street, Plungington at around 8.20am on Thursday having been called to reports of her “feeling unwell.”
She was rushed to Royal Preston Hospital where she was pronounced dead on arrival.
Det Chief Insp Dixon confirmed two people arrested on suspicion of murder, a 22-year-old man and a 20-year-old woman, believed to be the child’s parents, were still being questioned by police on Sunday.
He said: “Those interviews will continue throughout Sunday and into the early hours of Monday.
“A team of 30 detectives is working on the case, carrying out house-to-house visits in the area and reviewing CCTV as we try to build up a picture of Lia’s family lifestyle in the days leading up to her death.”
On Saturday, senior investigating officer, Det Supt Dermott Horrigan, from the Force Major Investigation Team, said: “This is an incredibly complex and sensitive inquiry and we have a team of highly trained and professional officers looking into the matter.
“Dedicated family liaison officers will be working with the family.
“The death of a child will always be greeted with shock and a deep sense of sadness. We have dedicated neighbourhood policing officers working in the area and talking to residents and I would urge anyone who has any concerns to speak to them.”