The end of the Chartered Institution of Wastes Management (CIWM) annual conference and exhibition was plunged into chaos when a man was injured following a vehicle hitting a tree as it attempted to leave the site.
As the show was packing up at around 5pm, a lorry reversed into a tree opposite the Inn on the Green pub in Paignton, Devon, the tree fell over and hit a man causing him minor shoulder injuries.
This led to disruption including the main road outside of the site being closed until well after 6pm.
Torbay Council is currently investigating the accident. A spokesman said: "It is still with our risk management team. The tree was inspected recently and was found to be safe above ground. But we need to find out what went wrong underneath."