From Yahoo News: A raging forest fire in eastern Arizona that has forced thousands from their homes headed Wednesday for a pair of transmission lines that supply electricity to hundreds of thousands of people as far east as Texas.

The 607-square-mile blaze is expected to reach the power lines as early as Friday. If the lines are damaged, parts of New Mexico and Texas could face rolling blackouts.

The blaze has blackened about 389,000 acres and destroyed 11 buildings, primarily in the Apache-Sitgreaves National Forest. No serious injuries have been reported.

The blaze, burning in mainly ponderosa pine forest, was sparked May 29 by what authorities believe was an unattended campfire. It became the second-largest in Arizona history on Tuesday. Read the entire article here.