Arsonists are thought to be behind a blaze at Silloth Golf Club at 8.25pm on Saturday.
Fire crews from across the area tackled the blaze, which affected patches of grass around the club.
Suspects were reported as wearing a black hooded top with white writing, a navy hooded top, a black tracksuit and a grey hooded top with white stripes.
Anyone with any information is asked to call police on 101 or Crimestoppers on 0800 555111.
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