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• Truce under strain as Tel Aviv kills family of four, Lebanese soldier

• Israel refuses to withdraw its troops from southern territory

• Hezbollah warns unprovoked aggression will not pass without a response

BEIRUT: Israeli strikes in Lebanon killed at least 20 people on Saturday, Lebanon’s state news agency said, one day after a ceasefire with Hezbollah took effect, underscoring the fragility of a truce aimed at halting months of escalating violence.