Teenager's death in Merseyside 'unexplained'
The "unexplained" death of a 15-year-old girl in Merseyside is being investigated by police.
Rose Farley was taken in an ambulance from her home in West Derby to Alder Hey Children's Hospital on Saturday. She died shortly after 05:00 BST.
A post mortem examination has taken place but Merseyside Police said the cause of death has been withheld pending toxicology tests.
A 16-year-old male has been held on suspicion of supplying drugs.
Police had said they were aware of reports that the girl's drink could have been "spiked".
Det Supt Tim Keelan said: "At this stage it is too early to draw conclusions about the cause of death and it is unhelpful to speculate.
"The implication that this may be drug-related is just one of the lines of enquiry that our comprehensive investigation is looking at."
He added: "That said, I would like to take this opportunity to warn people about the dangers of taking illegal substances.
"The effects of drugs are not always immediately apparent or can be delayed."