By Maria McCann
A fourth teenager has been arrested in connection with the sudden death of Caitlin White in Portadown.
The 15 year old boy has been questioned by detectives investigating the circumstances surrounding the schoolgirl's death last Saturday.
He has been released on police bail pending further enquiries.
The cause of her death is not yet known, but police say a link to drugs is one line of inquiry.
Police investigating Arson Attack in North Belfast
McIlroy honours omission came despite Stormont nomination
Police seize ‘significant quantity’ of drugs following chase
Woman dies in hospital after road crash in Co Fermanagh