A 15-year-old boy has been arrested on suspicion of murder following the death of another teenager in Manchester . Greater Manchester Police said the suspect had been detained after the other 15-year-old boy died following reports of a disturbance "involving a number of people" in the Moss Side area. He is in custody for questioning. The force said the victim was found with stab wounds on Monton Street just after 4.30pm on Monday. Section 60 powers, allowing officers to stop and search people,