Firefighters are battling a large blaze burning south of Cal Expo near Business Interstate 80 along the American River Parkway in Sacramento.

The blaze broke out sometime before 1:15 p.m. near mile marker 5 along the American River.

Crews were getting a handle on the fire when flames jumped a fire road and burned toward Cal Expo. LiveCopter 3 spotted sparks coming from transformers and power lines in the area where the blaze was burning.

People at Cal Expo have been evacuated because of the fire as much of the smoke moves that direction. The blaze is moving to the northeast, away from Business 80.

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