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Two young children and their great-grandmother are the latest victims of a massive and fast-moving wildfire in Shasta County that officials acknowledged Saturday they were making little progress in controlling.

Melody Bledsoe, 70, and her great-grandchildren, Emily Roberts, 5, and James Roberts, 4, died when their Redding home burned Thursday night, according to their family. The death toll from the blaze known as the Carr fire stands at five with more than a dozen other residents reported missing.

With the unyielding 100-plus degree temperatures and bone-dry vegetation, authorities said there was no end in sight to the fire and expressed particular alarm about its rapid expansion. Between Friday night and Saturday morning, the fire doubled in size. Despite the efforts of 3,400 firefighters aided by bulldozers and helicopters throughout Saturday , the blaze continued spreading toward residential areas west and south of downtown Redding.

As of Sunday morning, the blaze had burned 89,000 acres and was only 5 percent contained, authorities said.

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