Argentinian police have arrested 66-year-old Edgardo Oviedo on suspicion of keeping his wife and son locked up for six years.<br /><br /> They were allegedly enclosed in a cage within Oviedo’s family house in the coastal town of Mar del Plata, around 400 kilometres south of the capital, Buenos Aires. <br /><br /> Police were reportedly tipped off by the suspect’s other sons, who live nearby.
