Parts of Soviet-era jet fighters and missiles werediscovered underneath a cargo of sugar on board the 14,000–dwt Chong Chon Gang(built 1997) when it was stopped and searched before it passed through thePanama Canal.

Cuban officials said the equipment was to be repaired inNorth Korea and returned to the country.  

However the Stockholm International Peace Research Institutesays evidence compiled by Panamanian authorities and the UN Organisation onDrugs and Crime strongly suggests otherwise.