"It is fortunate that a third male who was with the two offenders intervened, as the incident could have been more serious," said Detective Senior Sergeant Craig Johnston, Nelson area manager: investigations.
As a result of inquiries by police, including a review of CCTV, a 17-year-old male is due in Youth Court this week charged with wounding with intent to injure, he said.
"Inquiries are ongoing to identify the second offender and hold them to account."
Last Wednesday, there was an altercation at a local premises between a group of young people.
As a result, a youth is appearing before the Youth Court this week.
The following day, November 12, a physical altercation between a group of young people saw a 16-year-old male later being put before the Youth Court on a charge of aggravated robbery.
"Inquiries are ongoing to locate two others understood to be present."
"These are senseless acts of violence being committed by young offenders against young victims," Detective Senior Sergeant Johnston said.
"The repercussions of these incidents are significant for both victims and offenders, and it is incredibly disappointing for police when they happen.
"We treat any report of violence extremely seriously, and will work hard to hold offenders to account - as evidenced by these recent arrests."
