Fire officials are mopping up and investigating after extinguishing the bulk of six grass fires that broke out in the lower American River Parkway on Wednesday morning.

Several fire engines responded to the spot fires on the south side of the American River, first reported at 8:13 a.m., the Sacramento Fire Department said in a tweet about 8:45 a.m.

Fire department spokesman Capt. Keith Wade said the “bulk” of the fire activity was extinguished as of 9:45 a.m., with crews staying at the scene to mop up possible hot spots. The largest of the fires was less than one acre, Wade said.

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