Hezbollah chief Sayyed Hassan Nasrallah vowed in a televised address on Tuesday that his group's response to last week's Israeli attacks would be "strong and effective", adding that Hezbollah would act either alone or with its regional allies. The news came as Hamas said it had chosen Yahya Sinwar, its top official in Gaza who masterminded the October 7 attacks, as its new leader. Sinwar replaces Ismail Haniyeh, who was killed in Iran last week in a presumed Israeli strike, sending regional tensions soaring. Read our liveblog to see how all the day's events unfolded.
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