Two-metre high waves have hit Chile's northern coast following an 8.2 earthquake in the country.
Officials said the five killed included people who were crushed by collapsing walls or were killed by heart attacks.
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Georgia Jones, 18, and Tommy Cowan, 20, were named locally as the pair who died after being taken ill at the Portsmouth event.
Targets for recycled and recyclable packaging should also be brought in to encourage firms to ‘harvest’ waste from consumers.
The store’s customer service, value for money and standard of stores were criticised by shoppers.