They were later transferred to a British Royal Navy ship . 3 security guards battle pirates , jump overboard as tanker hijacked off Somalia . British crew were rescued from pirates by German naval helicopter . Liberian - flagged Biscaglia also rescued 25 passengers , 2 Bangladeshis . Pirates seized Greek ship Alpha Centauri , held since February .
3 security guards battle pirates , jump overboard as tanker hijacked off Somalia . British crew were rescued from pirates by German naval helicopter . Liberian - flagged Biscaglia also rescued 25 passengers , 2 Bangladeshis . Pirates seized Greek ship Alpha Centauri , held since February .