Humanitarian truce closes with a boom

An Israeli artillery gun fires a 155mm shell towards targets from their position near Israel's border with the Gaza Strip on July 30, 2014
An Israeli artillery gun fires a 155mm shell towards targets from their position near Israel's border with the Gaza Strip on July 30, 2014

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    Humanitarian truce closes with a boom

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CNN's John Vause was on the air as a 'knock on the roof' blast announced an early end to a humanitarian truce in Gaza.