London police say one teen has been charged after an assault with a weapon at Montcalm Secondary School.
It happened around 10 a.m. on Thursday.
Police were called to the high school on Highbury Avenue north of Huron Street amid reports of an assault. They were also told a weapon was involved.
A victim in the assault sustained minor injuries and one 18-year-old male was arrested.
Investigators have not said what sort of weapon was used in the assault.