BERLIN - The discovery of an unexploded World War II bomb unearthed near Berlin’s main train station snarled rail and road traffic in the German capital Wednesday, authorities said. “The bomb was found yesterday (Tuesday) afternoon on property belonging to the rail company,” a police spokesman told AFP, adding that sappers planned to defuse it Wednesday. The 100-kilogramme (220-pound) explosive was dropped by an Allied plane during the Second World War, he said. Media reports said it was a Soviet bomb. The site lies about 1.5 kilometres (0.9 miles) north of the main station and the rail operator, Deutsche Bahn, said up to 50 regional and long-distance trains had to be re-directed to other hubs from 0800 GMT Wednesday.