Three people have been bailed by police who are investigating the death of a baby.
Officers were contacted at shortly after 9.30am on Thursday by the ambulance service who were treating a 19-month-old baby girl at an address in Lostock Hall.
The girl died a short time later at Royal Preston Hospital.
Lancashire Police say the death is being treated as suspicious and a post mortem examination will be carried out to try to establish the cause.
Three people, a woman aged 18 and two men aged 18 and 19, from Lostock Hall, were later arrested and have been bailed to April 19.
Inquiries are continuing.