Killing of Hamas chief in Iran stirs fears of retaliation

Hamas leader Ismail Haniyeh was assassinated in the Iranian capital Tehran early on Wednesday morning, an attack that drew threats of revenge on Israel and fuelled further concern that the conflict in Gaza was turning into a wider Middle East war.

The Palestinian Islamist militant group and Iran's Revolutionary Guards confirmed Haniyeh's death. The Guards said it took place hours after he attended a swearing-in ceremony for Iran's new president.