One killed, three injured in blast at Chinese university

One person was killed and three others were injured today in an explosion at a university in Nanjing, capital of east China's Jiangsu Province.

The explosion took place in a disused laboratory at the Nanjing University of Science and Technology, destroying the lab and shattering windows in nearby homes, according to the municipal fire department, state-run Xinhua news agency reported.

The university said the explosion occurred while the lab was being demolished by a construction crew.

Rescue efforts are under way and the cause of the explosion is being investigated, local police said.