The Sacramento Metropolitan Fire District reports that crews have halted the progress of fire burning along the American River Parkway near the Gold River access.

The fire was reported at 4:27 p.m., on the south side of the American River west of the Natomas Fish Hatchery. Capt. Michelle Eidam, fire district spokeswoman, said the fire was burning in heavy vegetation, with trees torching. She said county park rangers closed the bike trail in that area due to the firefighting activity.

Crews were able to quickly stop the progress, containing the fire to about 6 acres. No structures were threatened. Eidam said firefighters will be on scene mopping up for several hours.

The cause of the fire is under investigation.