Iranian President Ebrahim Raisi, known for enforcing brutal crackdowns on political opposition and seen as a potential successor to the supreme leader, has died in a helicopter crash landing in the country’s north, state media reported Monday. He was 63 years old.

Raisi, a conservative hard-line cleric, took office in August 2021 after several popular candidates were disqualified from the election, which had historically low turnout. He wore a black turban, symbolic of those who are…