Thick fog caused a massive 31 vehicle pile-up on a bridge in eastern China, leaving two people injured.

The video, filmed in the city of Taizhou in Zhejiang Province on January 13, shows three cars speeding into the vehicles crumpled together on a bridge blanketed by thick fog.

The visibility in some area was less than two metres and 31 vehicles crashed into each other in around 49 minutes.

Two people suffered injuries and were sent to hospital for treatment. The traffic on the bridge is back to normal.