Ismail Haniyeh, the political leader of Hamas, was killed by a strike in Tehran in the early hours of Wednesday morning, only hours after Israel said it had killed a top Hezbollah commander in Beirut.
The dual assassinations are heavy blows to Hamas and Hezbollah, but also raise the stakes for Iran, which backs both groups and vowed revenge. They will fuel growing fears that the war in Gaza could escalate into a broader regional conflict.
