Fourth arrest over teen stabbing in Derby
A fourth teenager has been arrested following the stabbing of a 15-year-old boy in Derby.
The attack happened in an underpass off Phoenix Street, close to Landau Forte College, at about 16:00 GMT on Monday.
The boy's injuries were not life-threatening and he has since been released from hospital, say police.
A 15-year-old boy was arrested on suspicion of causing grievous bodily harm and has been bailed pending further inquiries.
On Tuesday, two 14-year-old boys were arrested on suspicion of causing grievous bodily harm while a 17-year-old boy was arrested on suspicion of conspiracy to commit GBH.
They were questioned and released on bail pending further inquiries.