Flash floods in northern and southwest China have killed at least 20 people and left dozens missing, state media said Saturday, after a week of deadly downpours across the country.Several vehicles in northwestern Shaanxi province plunged into a swollen river late Friday after a bridge collapsed, with at least 12 people killed and over 30 missing, state news agency Xinhua reported.Initial investigations indicated that 17 cars and eight trucks had fallen into the river in the city of Shangluo, Xinhua said.Images on state television showed a partially submerged section of the bridge with the river rushing over it.One witness told local media that he had approached the bridge but that other drivers started “yelling at me to brake and stop the car
