Premier Kathleen Wynne says she has no doubt homophobia motivated some of the hundreds of people who protested Ontario's new sex education curriculum this week.

Wynne, who is gay, says she looked at the protest on the front lawn of Queen's Park and social media comments on the revised curriculum and concluded some of the opposition is homophobic.

Many of those at Tuesday's protest said the government was introducing ideas like same sex relationships and masturbation too early for some kids, but others brandished signs with more extreme messages.

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Wynne told The Canadian Press that there's no doubt in her mind that homophobia "is part of the motivating drive behind some of the protests."

Wynne says people will have to draw their own conclusions about why Progressive Conservative leadership candidate Monte McNaughton says she is not qualified to propose a new sex-ed curriculum.

McNaughton was fuming after Wynne suggested his questions were homophobic, calling it "the lowest thing a premier could say about another legislator."