Hundreds gather for funeral of Hamas political leader Ismail Haniyeh

Hundreds of people gathered at a mosque in Qatar on Friday for the funeral of Hamas leader Ismail Haniyeh after his killing in Tehran earlier this week, an attack blamed on Israel that deepened fears of a regional war.

Haniyeh, Hamas' political chief, played a key role in mediated talks aimed at ending nearly 10 months of war between Hamas and Israel in Gaza, and his killing triggered calls for revenge and raised questions about the continued viability of such negotiations.

Mourners lined up for funeral prayers inside Imam Muhammad bin Abdul Wahhab Mosque, the Gulf emirate's largest. Others prayed on mats outside in temperatures that reached 111 degrees Fahrenheit.