3 security guards battle pirates , jump overboard as tanker hijacked off Somalia . Comment: Liberian-flagged Biscaglia also carrying 25 Indians , 2 Bangladeshis . Three British security guards board a helicopter to be transferred to a Royal Navy vessel . Pirates release Greek ship MV Centauri , held since September .
3 security guards battle pirates , jump overboard as tanker hijacked off Somalia . Comment: Liberian-flagged Biscaglia also carrying 25 Indians , 2 Bangladeshis . Pirates release Greek ship MV Centauri , held since September .