Ex-Muslims are using a hashtag, #ExMuslimBecause, to tell why they have left the faith.

The Council of Ex-Muslims of Britain started the tag, saying it wanted to defend people's right to leave Islam and criticise it without fear or intimidation.

But many Muslims are taking issue, saying that the hashtag is "hateful," and being used as an excuse for Muslim-bashing at a time of increasing fear of Islamophobia.

Reporter: Anne-Marie Tomchak

Video journalist: Greg Brosnan

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