<span style="color: #222222;">Four people were hurt, one seriously injured, when a World War II bomb blew up on a railway construction site in the German city of Munich. The fire brigade says it happened during drilling work near Donnersberger Bridge, close to the main station. As a result rail traffic in much of Munich was brought to a standstill.<br />'' <br />'' Police say the bomb went off during tunnel work near the bridge. Local reports described a loud bang followed by a column of smoke. An excavator was overturned by the force of the blast.<br />'' <br />'' Emergency services rushed to the area and bomb disposal experts were quickly at the scene examining the remains of the bomb.<br />'' <br />'' Interior Minister Joachim Hermann said the "aerial bomb" weighed 250kg.<br />'' <br />'' Unexploded wartime bombs are frequently found in Germany and prompt big evacuations, but most are defused by experts without exploding.<br />'' <br />''<br />''Seventy thousand people had to leave their homes in Frankfurt in 2017 when a 1.4-tonne British "blockbuster" bomb was discovered.</span>