FRANKFURT, June 6 (Xinhua) -- Nine people were seriously injured on Friday in an explosion in the southwestern German city of Heidelberg, according to local press reports.
The accident occurred at a restaurant at around 17:50 local time, leaving nine people seriously injured and five of them are in critical condition.
Police said it was probably a gas explosion, which took place in the second floor of the restaurant.
Some pedestrians were also reported injured as shattered glass was blown out. Some policemen, fire fighters and rescue team have reached the scene and the police cordoned off some roads in the city.