On 4th May a large explosion occurred in Priestgate between the Phoenix Brewery and Angel Inn. Reports claimed that fumes from the Phoenix Brewery had mixed with sewer and coal gases. It's then thought these were accidentally ignited by a discarded cigarette.
The explosion was dramatic and affected both Priestgate and Narrow Bridge Street, but the effects were worse in Priestgate. Paving stones were thrown high up into the air and all of the windows were smashed in Priestgate, with more in Narrow Bridge Street. To make things worse the contents of the sewers, including thousands of dead rats, were thrown up against the buildings. People were particularly alarmed because there had been a recent threat to blow up the Cathedral. There were no records of any deaths, other than the rats, and no record of how long it took to get rid of the smell!