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6 year oldKirk Woodman was abducted by gunmen on Tuesday night from a mine near the country's border with Niger.
Canada's Foreign Minister Chrystia Freeland condemned those responsible "for this terrible crime".
Mr Woodman was the second Canadian to go missing in Burkina Faso in recent weeks.
<p>A look at 10 of the men seen as contenders to become the next pontiff.</p>