Heavy Saudi security for Hajj pilgrimage  
 

For the next five days, three million people will be performing the Hajj in Mecca. The convergence of so many people in one place is a danger.

In past years fires and deadly stampedes have cast a cloud over the event. But as Al Jazeera's Hashem Ahelbarra reports, Saudi Arabia has boosted security for this year by unprecedented numbers.

 
 

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