Police, who declared it a major incident, said they were not treating it as a suspected terrorist event and Avon and Somerset Police Superintendent Matt Ebbs later described it as a domestic-related incident.
Officers are also carrying out enquiries at a property in Bristol linked to the explosion and while they were at an early stage, the authorities at this point were not looking for anyone else in connection with the explosion, the police said in a statement.
Police said there seemed to be no significant damage to other properties.
(Reporting by Muvija MEditing by Tomasz Janowski)

Police officers patrol Kings Cross Station in London, Britain, 03 November 2025. Extra police officers were being deployed across England's rail network in response to the stabbings on board a Doncaster-London train on 03 November 2025. A British man has been arrested on suspicion of attempted murder after 11 people were injured. EPA/NEIL HALL