A “vulnerable” 15-year-old boy has become the victim of a paramilitary-style attack.
Masked attackers hit the boy with iron bars in Gartan Square in Londonderry at about 00:00 BST on Saturday, breaking several bones in his body.
The police called it a “serious and malicious assault”.
Chief Insp Alan Hutton said: “The assault has all the hallmarks of a paramilitary-style attack, with the assailants all wearing masks.
Police have appealed for information.