Aftermath footage of a powerful explosion south of Shanghai that damaged nearby buildings, killing at least two and injuring 30 others.

In the video, filmed on November 26 in Ningbo City in Zhejiang Province, a plume of smoke rises into the air and houses have been destroyed and cars damaged.

A group of rescue workers are on the scene.

According to reports, the explosion happened at a septic tank in an industrial area.

The cause was being investigated.