Biden Urges Ceasefire as Middle East Faces Escalating Tensions After Haniyeh's Assassination

US President Joe Biden expressed deep concern over escalating tensions in the Middle East following the assassination of Hamas leader Ismail Haniyeh in Iran. This incident has sparked fears of a broader conflict that could engulf the region. Countries across the Middle East have reacted with sadness and anger, with many blaming Israel for the attack. Iran declared three days of mourning and vowed to retaliate against Israel, which has remained silent on the matter. The assassination is expected to complicate ongoing ceasefire negotiations and could further escalate hostilities between Israel and Hamas, as well as between Israel and Hezbollah.