Forest Service crews are fighting multiple suspicious fires in the Marshall Lake area and a separate fire is also being reported east of the city.
Officials say that at least nine blazes were ignited along the area of Forest Service Road 128. No structures are currently threatened.
A separate fire burning just east of Flagstaff, called the Pony fire, is not thought to be related to the fires burning near Marshall Lake. Officials believe that fire was an unauthorized controlled burn that got out of control.
When crews arrived on scene near Marshall Lake, they spotted a Native American male walking away from the area, according to the Coconino County Sheriff's Office.
At about the same time, a dark grey Hyundai Santa Fe with three Native American female passengers was also spotted in the area. One of the female passengers is thought to have pink hair, according to the Coconino County Sheriff's Office.
The Arizona Department of Public Safety helicopter was launched to search for the SUV earlier today and local law enforcement are also on the lookout.
The Coconino National Forest has named the blazes Marshall fires 1 through 4.
Marshall 1 consists of six smaller fires that grew into one fire, which has now reached about two acres in size. Marshall fires 2 and 3 have now been contained inside a fire line at well under an acre. Marshall fire 4 does not yet have a fire line around it, but is also under an acre.
The Native American male and three females are considered persons of interest.
Forest Service officials are asking anyone with information to call (928) 527-3552.