Tragedy Passing News Today

That pilgrims ignored security guidelines were and blamed for the tragedy. iran is calling for international action against saudi arabia. it says more than 130 of its citizens were killed in that stampede. the saudi government is promising a speedy investigation into this disaster. senior international correspondent, nick paton walsh, is following developments live from london for us. good to have you with us. this is a tragedy in all regards. now were seeing the aftermath and finger pointin...