About two dozen kids at Burlington Central Elementary School were suspended late last week after allegedly taking part in “Kick a Ginger Day,” which encourages people to kick those with red hair.

But parents of some of those disciplined say the school’s tactics for punishing the children — which included a police presence and naming those who would be suspended out loud at an assembly — are out of line.

Nov. 20 has been called Kick a Ginger Day, a nod to a 2005 episode of the animated show South Park in which characters waged violence against redheads.

Halton police say they were called to the Burlington school Friday morning and are investigating at least four incidents linked to the designated day.

Police said school officials contacted them after receiving complaints from students. No one needed medical attention.