The volume of goods being processed in Russian ports has slumped in the wake of its invasion of Ukraine, in some cases significantly, a study by the Kiel Institute for the World Economy has found. The port of St Petersburg - formerly Russia's largest container port and an important hub for trade with Europe -- achieved less than 10 percent of the previous year's volume in October, the German economic research institute reported on November 7. The port of Novorossiysk on the Black Sea recorded a decline in business of about 50 percent. To read the original report, click here.