Detectives investigating the death of Caitlin Shortland have arrested a 15-year-old boy.
The 15-year-old Craigavon Senior High School pupil, from Laurelvale, died in hospital last Saturday.
She had been taken there after officers found her unconscious in the Corcrain area of Portadown.
The 15-year-old boy was arrested earlier today (Thursday).
He has been interviewed and subsequently released on police bail pending further enquiries.
This is the fourth arrest made to date by police investigating Caitlin’s death.