A long-running feud between two Gypsy families in northern Greece led to nine people being injured after an exchange of gunfire on Saturday, police said. Officers said the vendetta between the two families was rekindled after an argument at a cafe in the town of Alexandria in Imathia on Friday night. As a result, the following morning, three members of one family opened fire with hunting rifles on the home of the other family in the village of Kapsohora. Two members of the family being attacked returned fire with their hunting rifles. The nine people injured in the shootout are being treated at three different hospitals in northern Greece. One of the gunmen was arrested and two suspects are under police guard at the hospital. Police said they are also looking for another two suspects.