Who is Yahya Sinwar?published at 14:50 British Summer Time 17 October
Yahya Sinwar was named the overall chief of Hamas in August after the killing of his predecessor Ismail Haniyeh in Tehran.
He previously served as the group's leader inside the Gaza strip, a position he took on in 2017.
Sinwar currently tops Israel’s most-wanted list. The country's security agencies believe he masterminded the planning and execution of the unprecedented 7 October 2023 attacks on southern Israel, which killed over 1,200 people and 251 taken back into Gaza as hostages.
He was born in Khan Younis refugee camp in southern Gaza in 1962.
In the late 1980s, Sinwar founded the Hamas security service known as Majd, which among other things targeted alleged Palestinian collaborators with Israel.
He has spent much of his life in Israeli jail - and after his third arrest in 1988 he was sentenced to four life terms in prison.
Sinwar was among 1,027 Palestinian and Israeli Arab prisoners released by Israel in the 2011 exchange for Gilad Shalit, an Israeli soldier held captive for over five years in Gaza by Hamas.