Last contact with the Saudi freighter was late last week . only one of ships have been attacked by pirates in Africa . Report : Watch more about the growing piracy problem » . No ransom figure yet for hijacked Saudi supertanker . Pirates seized the Sirius Star on late last week .
Last contact with the Saudi freighter was late last week . only one of ships have been attacked by pirates in Africa . Report : No ransom figure yet for hijacked Saudi supertanker . Pirates seized the Sirius Star on late last week .