Baku, October 13, AZERTAC Six people were killed and nine others injured in a restaurant gas explosion in east China's Jiangsu province Sunday, local authorities said, according to China Daily.The gas explosion happened at around 11 am in a street food restaurant in Xishan District in the city of Wuxi, the city's publicity department said.A total of 15 people were sent to hospital for treatment, six of whom died. The nine injured are under stable condition.Further rescue work is underway.