Police say a 52 year old woman will appear in court at Kendal tomorrow charged with 'arson with intent to endanger life'.
Sheila Greaves, of Marvic Court, was arrested after allegedly setting her own flat alight in the centre of the town.
She's being kept in police custody until her court appearance.
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It is now believed that 45-year-old Robert Cantle may have travelled in his car to the Jedburgh area on Sunday morning.
A Cumbrian man has been jailed for 15 years after a police crime unit seized its biggest ever haul of firearms.
The historic event always takes place on the last Friday in July.