How did the fire start in Barbara hepworths store?

The fire in Barbara Hepworth's studio in 1975 was attributed to an accidental cause, specifically linked to the use of a blowtorch, which ignited flammable materials in the space. This unfortunate event resulted in significant damage, destroying many of her works and personal items. Hepworth was deeply affected by the loss, as it represented not only her creations but also her artistic legacy.