The National Police have arrested four Argentinians in Torrevieja on charges of armed robbery .

The robberies have taken place in Murcia and the southern Costa Blanca and they have been violent attacks . A store in Cartagena , where 120,000 euros worth of jewellery was taken , had staff bound and gagged and they then beat them with belts . Customers were locked into an office .

Investigations led the police to an apartment in Torrevieja where they discovered the Cartagena haul plus firearms and other stolen items .

They have also been charged with a robbery in Murcia .

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