As tensions between the two Middle Eastern powers intensify, is there actually a chance of a shooting war breaking out? And how disastrous would that be?
The ban is the latest sign that relations between Saudi Arabia and Iran are rapidly deteriorating.
The conservative Islamic kingdom allowed female participation at the polls for the first time ever during landmark municipal elections on Saturday.
Another 934 were injured in the incident on Thursday, and the Iranian government has announced that it has formed a committee to investigate it.
Tehran has criticized Saudi Arabia for its mismanagement of the tragedy, the worst during the pilgrimage in 25 years.
Safety during hajj is politically sensitive for the Saudi Arabia's ruling Al Saud dynasty, since the ruling family presents itself internationally as the guardian of orthodox Islam.
At least 87 are dead at Islam's holiest site.
At least 87 people were killed and more than injured after high winds knocked down a construction crane.
Indian-born filmmaker and LGBT activist Parvez Sharma's new documentary A Sinner in Mecca is a rare glimpse at a gay man's journey to Saudi Arabia.
Chilling video has emerged showing the public killing of a Burmese woman in the holy city of Mecca, taking the number of executions in the country into double figures this year.
Like Abraham, my father believed he was ordered by God to put a knife to his son’s throat.