The organisers of the Bristol Brick show say they are ‘devastated’ and an investigation has been launched by the city’s health authorities.

Nearly 4,000 people visited the Action Indoor Sports centre to celebrate Lego but after the event more than 40 attendees started experiencing sickness and diarrhoea.

One Lego fan, who wishes to remain anonymous, said he was not happy with the cleanliness of the venue.

He said: “The state of the place left a lot to be desired.”

“The food wasn’t great and over the weekend, the toilets weren’t well maintained, the basins didn’t work well and there was no hand sanitiser and that sort of thing.”

“At least 40 people that I know about have been affected.”