Two people died in an explosion in southern England on Sunday, according to police reports. Avon and Somerset Police declared a major incident following the blast but stated they do not believe it was terrorism-related.

The incident occurred amid heightened security concerns, as British officials had recently raised the United Kingdom's terrorism threat level. Despite this elevated alert status, investigators determined the explosion did not constitute a terror incident.

Police have not released details about the cause of the explosion or the identities of the victims. The investigation remains ongoing as authorities work to determine what led to the fatal blast.

The incident represents one of several unrelated public safety matters police are handling across England, including separate investigations into shootings and other incidents in different regions of the country.