The death toll following a crush at the annual Hajj pilgrimage in Saudi Arabia is now 769 and the number of injured has risen to 934.
Witnesses claimed police had closed entrances and exits to the pilgrims' camp, making the disaster inevitable, while Iran's Supreme Leader accused authorities of "mismanagement".
King Salman has ordered an immediate review into safety procedures.
A British MP has called for "accountability" for the crush that killed more than 700 people in Saudi Arabia during this year's Hajj pilgrimage.
Naz Shah, MP for Bradford West, told ITV's Good Morning Britain she had family members in the region who were "fine" but added that many were still waiting to hear whether their loved ones had been affected.
"What I understand is that two buses of people were allowed to get off... before their scheduled time," she said.
As many as 7,000 people from Bradford are thought to have travelled on the Hajj pilgrimage this year, with the trip costing up to £5,000 per person.
Shah said the safety of the event had "improved" in recent years, adding that many tour operators and local mosques provided safety training for people before they make the trip.
The Democratic presidential candidate may also have shown his cards on his choice of running mate.
The US president also shared a post on Twitter accusing Dr Anthony Fauci of misleading the public over hydroxychloroquine.
Fears over an impending second wave of coronavirus dominates Wednesday’s front pages.