Four people have been arrested after a 16-year-old girl died from a suspected drugs overdose.
Paramedics were called to a park near St Margaret’s Hill in Wimborne, Dorset, just after 22:30 BST on 6 July. She died in hospital three days later.
Four people have since been arrested on suspicion of supplying a controlled class A drug.
Dorset Police said they have increased police presence in the area.
A woman from Bournemouth, along with a 17-year-old, and two 16-year-old boys from Wimborne, have all been released under investigation.