Explosion in Chinese port city causes injuries, damage

BEIJING (AP) - A factory explosion in a port south of Shanghai on Sunday injured at least 30 people, knocked down buildings and left streets littered with damaged cars and debris, news reports said. There was no immediate word of possible deaths or the severity of injuries.The explosion at a factory in Ningbo, one of China's busiest ports, struck a district on the Yong River at about 8:55 a.m., the official Xinhua News Agency and other outlets reported.At least 30 injured were taken to hospitals