DOHA: Hamas leader Ismail Haniyeh was buried in Qatar on Friday after his killing in Tehran, an attack blamed on Israel that has heightened regional tensions as the Gaza war dragged on. Haniyeh was laid to rest in Lusail, north of the capital Doha, following funeral prayers at the Gulf emirate’s largest mosque attended by thousands of people. Haniyeh, the Palestinian armed group’s political chief, played a key role in mediated talks aimed at ending nearly 10 months of war between Hamas and Israel in the Gaza Strip.