After two days of lengthy negotiations in Doha, Hamas has named its Gaza leader Yahya Sinwar as successor to former political chief Ismail Haniyeh, who was assassinated in Tehran last week, the group said on Tuesday.
Sinwar, who spent half his adult life in Israeli prisons, was the most powerful Hamas leader left alive following the assassination of Haniyeh.
The announcement comes at a moment of soaring tensions in the Middle East, as Iran and its allies threaten retaliation for the killing of Haniyeh, which they blame on Israel.
Israel has not claimed responsibility for the assassination but it has said it killed other senior leaders, including Hamas deputy leader Saleh al-Arouri, who was killed in Beirut, and Mohammed Deif, the movement's military commander.
Born in a refugee camp in the southern Gaza city of Khan Younis, Sinwar, 61, was elected as Hamas' leader in Gaza in 2017 after gaining a reputation as a ruthless enforcer among Palestinians.