Updated 1:45 p.m.: As of 1:45 p.m. Monday, Fire Service spokesman Tim Mowry said the Fire Service was in the process of shuttling three additional crews to the area to assist in fire suppression. Mowry estimated the fire to still be around 500 acres, but said that measurement may change once crews are able to take another look at the fire by helicopter. More information is set to be available later this afternoon. More than 100 people are working on the fire, which is believed to have been started by lightning.

Update: Erratic winds spread the Caribou Creek fire to an estimated 500 acres amid black spruce by 11 p.m. Sunday, before calming overnight. The fire is in a full suppression zone with a cabin nearby, although the fire was moving away from the cabin site. 

The fire is burning on the north side of the the Caribou Creek valley, east of the Little Chena River about 7.5 miles north of mile 18 Chena Hot Springs Road. 

Fire crews and aircraft are working to suppress a wildfire burning near Caribou Creek off the Little Chena River north of Two Rivers. 

Eight Bureau of Land Management smokejumpers are on the ground, four helicopters are dropping water and an air tanker is dropping retardant on the Caribou Creek Fire, just north of Anaconda Creek, according to the Alaska Division of Forestry. 

Crews are accessing the fire via Two Rivers Road at 18 Mile Chena Hot Springs Road. The fire was reported shortly before 6 p.m. Sunday and was estimated at 150 acres at 9:30 p.m.. It is burning in black spruce in a river valley about 7.5 miles north of Chena Hot Springs and smoke is visible in Two Rivers. Fire crews are staging at Two Rivers School.

The 20-person BLM Chena Interagency Hotshot crew is en route, as are an additional eight smokejumpers and two local Type 2 Emergency Firefighters. 

This story will be updated.