Safety in Mecca
Despite strict crowd control measures, overcrowding and stampedes are major hazards during the month of the Hajj, killing dozens of people. Mina, Jamrat and the bridges leading to them are known to be particularly dangerous, although steps have been taken to alleviate this: there are now four parallel bridges and the route is now unidirectional.
During the Hajj, pickpockets are not uncommon. Avoid having any valuables on your person when traversing through the crowds. In other words, be on the safe side and don't take chances.