In addition to the expansion of the Grand Mosque, the Saudi Riyal 4.2 billion multilevel hi-tech Jamarat bridge project has also been going on for the past few years. The Jamarat bridge facilitates the stoning ritual in Mina, where stampedes have occurred in the past. The newly-expanded Jamarat bridge in Mina can accommodate 500,000 pilgrims per hour during the Haj season, said Prince Mansour bin Miteb, Minister of Municipal and Rural affairs.