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Saudi Arabia vows to investigative after crane collapse kills 107 in Grand Mosque

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A towering construction crane, center, is seen collapsed over the Grand Mosque, in Mecca, Saudi Arabia, early Saturday morning (AP Photo)

A towering construction crane, center, is seen collapsed over the Grand Mosque, in Mecca, Saudi Arabia, early Saturday morning (AP Photo)

AP

A towering construction crane, center, is seen collapsed over the Grand Mosque, in Mecca, Saudi Arabia, early Saturday morning (AP Photo)

Saudi Arabia has opened investigation after at least 107 pilgrims were killed when a giant construction crane collapsed on the roof of the Grand Mosque in Mecca.

The crane, one of 15 placed around the holiest site in Islam, appears to have been toppled by high winds.

During a sudden storm, the crane snapped in half and smashed through the ceiling on the eastern side of the largest mosque in the world.

The Masjid al-Haram, or Grand Mosque, was particularly busy at the time, as Muslims converge on the site ahead of the annual Hajj pilgrimage at the end of the month.

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A construction crane is seen collapsed over the Grand Mosque, in Mecca, Saudi Arabia, early Saturday morning(AP Photo)

A construction crane is seen collapsed over the Grand Mosque, in Mecca, Saudi Arabia, early Saturday morning(AP Photo)

AP

In this still image taken from video released by Saudi TV, a crane is seen collapsed over the Grand Mosque in Mecca, killing dozens (Saudi TV via AP)

In this still image taken from video released by Saudi TV, a crane is seen collapsed over the Grand Mosque in Mecca, killing dozens (Saudi TV via AP)

AP

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A construction crane is seen collapsed over the Grand Mosque, in Mecca, Saudi Arabia, early Saturday morning(AP Photo)

Pictures and videos posted on social media showed scores of dead bodies on the mosque's marble floor and courtyard, with dazed and bloodied pilgrims being treated among the rubble.   

Abdel Aziz Naqoor, who said he works at the mosque, said he saw the crane fall after being hit by the storm.

"If it wasn't for the Al-Tawaf bridge the injuries and deaths would have been worse," he said, referring to a covered walkway that surrounds the holy Kaaba and broke the crane's fall.

Prince Khaled al-Faisal, the governor of Mecca, has ordered an investigation into the incident.

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A pilgrim points at a crane that collapsed and killed dozens inside the Grand Mosque in Mecca, Saudi Arabia, Friday (AP Photo)

A pilgrim points at a crane that collapsed and killed dozens inside the Grand Mosque in Mecca, Saudi Arabia, Friday (AP Photo)

AP

A pilgrim points at a crane that collapsed and killed dozens inside the Grand Mosque in Mecca, Saudi Arabia, Friday (AP Photo)

This will presumably focus on why the crane was not properly secured against high winds.

However, the results of official inquiries are rarely disclosed in Saudi Arabia, which is instinctively secretive.   

The €17 billion expansion of the Grand Mosque was being carried out by the Saudi Binladin Group, the industrial conglomerate founded by the father of Osama bin Laden.

A huge hotel complex is being built around a mile south of the Grand Mosque. The hotel, with 45 storeys and 10,000 bedrooms – including five floors for the sole use of the Saudi royal family – will be the largest in the world when it opens next year.

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(FILES) - A file picture taken on July 16, 2015 from the Abraj al-Bait Towers shows Muslim worshipers praying at the Grand Mosque in the Muslim holy city of Mecca. A massive construction crane crashed into Mecca's Grand Mosque in stormy weather on September 11, 2015, killing more than a hundred people, less than a fortnight before the hajj pilgrimage starts. A project is currently underway to expand the area of the mosque by 400,000 square metres (4.3 million square feet), allowing it to accommodate up to 2.2 million people at once. AFP PHOTO / STR-/AFP/Getty Images

(FILES) - A file picture taken on July 16, 2015 from the Abraj al-Bait Towers shows Muslim worshipers praying at the Grand Mosque in the Muslim holy city of Mecca. A massive construction crane crashed into Mecca's Grand Mosque in stormy weather on September 11, 2015, killing more than a hundred people, less than a fortnight before the hajj pilgrimage starts. A project is currently underway to expand the area of the mosque by 400,000 square metres (4.3 million square feet), allowing it to accommodate up to 2.2 million people at once. AFP PHOTO / STR-/AFP/Getty Images

AFP/Getty Images

(FILES) - A file picture taken on July 16, 2015 from the Abraj al-Bait Towers shows Muslim worshipers praying at the Grand Mosque in the Muslim holy city of Mecca. A massive construction crane crashed into Mecca's Grand Mosque in stormy weather on September 11, 2015, killing more than a hundred people, less than a fortnight before the hajj pilgrimage starts. A project is currently underway to expand the area of the mosque by 400,000 square metres (4.3 million square feet), allowing it to accommodate up to 2.2 million people at once. AFP PHOTO / STR-/AFP/Getty Images

The Grand Mosque is Islam's most sacred site.

At its heart is the Kaaba – a black cube-shaped building – which Muslims all over the world face when they pray. Hajj pilgrims perform a series of rituals, including walking anti-clockwise seven times around the Kaaba.

The pilgrimage, one of the largest religious gatherings in the world, this year takes place between September 21-26.  

Last year more than two million people performed Hajj, while in 2012 the figure was more than three million.

The official Saudi SPA news agency said in a statement that by yesterday, almost 800,000 pilgrims had already arrived in the kingdom.

The pilgrimage has suffered numerous disasters in the past, including fires and stampedes.

The worst stampede, in 1990, left 1,400 people dead.

The Saudi authorities have since gone to great lengths – and spent billions of euro – to expand the main Hajj sites and improve Mecca's transportation system. 

Telegraph.co.uk