The Saudi Arabian King Salman, vowed to make the results of the crane collapse in Mecca public. At least 107 people died in the accident that took place in Mecca's Grand Mosque on Friday.
King Salman visited the site late on Saturday, and then met survivors of the accident in hospital.
"We will investigate all the reasons [of the collapse] and afterwards declare the results to the citizens," the official Saudi news agency quoted him as saying. The detailed results will be made public under King Salman’s instructions.
Heavy rain and strong winds are believed to have caused the construction crane to topple onto the Grand Mosque full of worshippers, just two weeks before the Hajj pilgrimage season starts.
Videos and photos instantly surfaced online, showing Bodies and blood on the floor of the mosque.
The BBC correspondents say previous concerns have been raised over the level of safety maintained on Saudi construction sites.
The victims and injured are believed to be from numerous countries, including Iran, Turkey, Afghanistan, Egypt, Pakistan, Malaysia, Mongolia and Algeria.
"The entire area is like a salvage yard," Irfan al Alawi, from the Islamic Heritage Research Foundation said, referencing the fact that the grand mosque is now surrounded by 15 large cranes.
"Saudi Arabia has to re-think its health and safety strategy," he said, "as there were 800,000 people in the mosque area at the time of the accident."
Numerous construction towers cover the skyline of Mecca as the holy site undergoes expansion and renovations to cater to the growing number of Muslims visiting the city to fulfil their Hajj pilgrimage.
The pilgrimage is considered to be a religious duty for all Muslims and it is expected for them to carry it out at least once in their lifetimes.
Although Mecca is expected to see over two million Hajj pilgrims this year, Saudi Arabia has reduced the number of people it will take in from each Muslim country to ensure the safety of visitors.
The tragic accident will not affect schedules and the pilgrimage will continue as planned, reported an unnamed Saudi official cited by the Al Arabia news channel.
“The incident won't affect the haj pilgrimage this year and repairs to the damaged section [of the mosque] will begin within days," the official said.