Qatar on Friday is due to hold funeral ceremonies for Hamas leader Ismail Haniyeh after his killing in Tehran, an attack blamed on Israel that has deepened fears of a regional escalation. Haniyeh, who had resided in Doha along with other members of the Hamas political office, will be buried at a cemetery in Lusail, north of the Qatari capital. His killing sparked calls for revenge and is among several incidents that have inflamed regional tensions during the Gaza war between Israel and Hamas which has drawn in Iran-backed militant groups in Syria, Lebanon, Iraq and Yemen.
