Ten people have been arrested as part of an investigation into the dumping of hazardous waste including heavy metals and asbestos by an Avonmouth company.
Sixty Environment Agency investigators along with Avon and Somerset Police carried out dawn raids on several sites.
The Environment Agency said it was the UK's biggest ever hazardous waste raid and they are looking into whether there is any risk to public health.
The ten have been released on bail until January. The investigation is expected to take several months to complete.
Text Santa is organising the Biggest Bag Pack Ever for 6 UK based charities. They will help and support someone near you this Christmas.
The second carnival takes place tonight in the West's Guy Fawkes Carnival Circuit. Many roads in the town will be closed from 6pm.
Bristol based charity Sustrans is warning cyclists to stay safe as clocks go back