Ten homes had to be evacuated in Kelloholm, in Dumfries and Galloway, after a grass fire came within a few feet of residents' gardens.
Many of those evacuated were people over the age of 70.
One resident described it as "an inferno" and said "it was a very frightening experience".
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The demonstrator, who is thought to be from Ambleside, appeared to be mimicking Prime Minister Boris Johnson wearing a blonde wig and suit.
The 77-year-old was airlifted to hospital after being hit by a car in the town centre. She died early Friday morning.
Scott Thomas Hanson, 35, was approached inside a Cockermouth church out of concern by the 92-year-old worshipper last August.