A woman in her 30s has been arrested on suspicion of arson following a fire at an ICA supermarket in Västerås, Sweden, on Christmas Day.

The suspect, who reportedly has a history of mental illness, was released from psychiatric care just half an hour before the incident.

The store was quickly engulfed in flames and completely destroyed.

The woman has admitted to the circumstances but denies intent to commit arson.

No injuries were reported in the incident, but the aftermath saw the remains of the store looted by several individuals.