A flash flood killed nine people and left 11 others missing in southwest China's Guizhou province, state media said Tuesday, as thunderstorms also threatened neighbouring quake-hit Sichuan. Torrential rain hit nine townships in the Guizhou county of Wangmo on Monday evening that caused the flood, Xinhua news agency quoted the Emergency Response Office of the local government as saying. The flood destroyed 58 houses, two bridges, a highway, and power poles, causing blackouts in eight townships, affecting 26,000 people, Xinhua said. The news comes as more bad weather was expected to hit Sichuan province -- struck by an earthquake two weeks ago -- threatening to hamper recovery efforts. The quake measuring 8.0 on the Richter scale has killed more than 65,000 people and at least another 23,000 are still missing.