Authorities are waiting for scientists to confirm whether or not a shipment of four containers seized at the port of Elefsina, west of Athens, in December contained material that could be used to illegally construct weapons systems in Iran, sources said yesterday. The 80-ton shipment was apparently seized after a tip-off from the United Nations, which claimed that the unidentified material was headed for Iran and a company that was on the UN’s watch list for the manufacture and trade of weapons in the Middle East. The shipment began its journey from the Slovenian port of Koper. It then docked in a port in the Calabria region of Italy before making its way to Elefsina. The cargo is being examined by scientists at the National Center of Scientific Research (Demokritos) and the General State Laboratory who will determine whether the shipment should remain impounded.