DUBAI, United Arab Emirates (AP) — Israel struck the headquarters of Hamas' political leadership in Qatar on Tuesday as the group's top figures gathered to consider a U.S. proposal for a ceasefire in the Gaza Strip. The strike on the territory of a U.S. ally marked a stunning escalation and risked upending talks aimed at winding down the war and freeing hostages.

The attack angered Qatar, an energy-rich Gulf nation hosting thousands of American troops that has served as a key mediator between Israel and Hamas throughout the 23-month-old war and even before. It condemned what it referred to as a “flagrant violation of all international laws and norms" as smoke rose over its capital, Doha.

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