kills 1, inj ures 4

A person was killed and four people injured when an air-conditioner exploded in Qingdao of East China's Shandong Province on Wednesday, reports Peninsula Metropolis News.

The accident took place around 2:15 pm in a house, where the newly bought air-conditioner was being installed.

The victim was one of the three installation workers. Among the injured were two other workers and the house owner, surnamed Sun, and his son.

The cause of the explosion was not known.