Sinn Fein has demanded a meeting with school governors over an allegation that a teacher told a class that the republican party were "IRA scum".
Billy Leonard is Sinn Fein's Candidate in East Londonderry
The row relates to an incident at St Mary's Catholic secondary school in Limavady, County Londonderry.
When it was contacted for comment, St Mary's said it had nothing to say on the matter.
But Sinn Fein councillor Brenda Chivers said she was planning to meet the principal of the school.
The councillor alleges the teacher told the children that Sinn Fein should not be supported in the election.
Billy Leonard, Sinn Fein's Westminister candidate in East Londonderry, said the local party had contacted as many parents as it could to establish the facts.
"Apparently two of the children were wearing tricolour badges which prompted the outburst.
"This is like something out of a George Orwell novel. It is an attempt at brain washing of the most frightening kind.
"I have already left messages with the chairman of the board of governors to meet with myself and Brenda Chivers immediately to address this issue."