The Rim Fire has threatened two groves of giant sequoias that are unique in the region, prompting park employees to clear brush and set sprinklers around the huge trees.
While sequoias have a chemical in their bark to help them resist fire, they can be damaged when flames move through slowly.
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The drinks manufacturer said it would be transferring production of Robinsons and Fruit Shoot from Carrow Works to other locations.
Most places will be dry with sunny spells, after a frosty, locally icy start.
Toronto police said they were investigating the deaths of Barry Sherman and his wife who were found at their mansion.