Iran’s president Ebrahim Raisi and the country’s foreign minister Hossein Amir-Abdollahian have been killed in a helicopter crash in north-western Iran, according to the country’s state media. The news that Raisi – second only to the country’s supreme leader in the power structure – and Amir-Abdollahian – a critical and influential figure in the ruling circle – have died could not have come at a trickier and potentially more dangerous time.