School police used pepper spray to break up a fight at Valley High School on Thursday.
Principal Kimberly Perry-Carter said two students got into an altercation after school and Clark County School District police tried to break up the quarrel and disperse a crowd.
Officers warned that they would use pepper spray but students did not comply.
“As a result, several students who were in the immediate area were possibly affected by the spray and were treated by medical staff on site,” Perry-Carter said in a message to families.
No further information was available.