BEIJING, Aug 17 (Xinhua) -- An explosion slightly injured ten people at a research institution in Beijing early Tuesday, police told Xinhua.
The explosion occurred at 0:40 a.m. at a materials research institution in the Fengtai District of Beijing.
The blast shattered the windows of five nearby one-story houses and set them ablaze.
The fire was extinguished at 1:30 a.m.
The injured were hospitalized.
The police are investigating the cause of the accident.