A former University of Calgary professor says he warned the school's administration years ago about the potential radicalization of some Muslim students, but nothing was done.

Aaron Hughes, who now teaches at the University of Rochester, N.Y., said he wanted to speak out after a series of CBC News stories revealed that several young Calgarians have headed overseas as jihadists in Iraq and Syria.

"I was very much bothered by the conservative nature of the Muslim student body," the religious studies scholar said.

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