A brush fire has sparked north of the Loop 202 and west of the 101 near McKellips Road.
— Arizona DOT (@ArizonaDOT) April 2, 2018
The fire started shortly after 3 p.m Monday afternoon.
Mesa and Scottsdale fire crews are assisting the Salt River Fire department battle the blaze.
Salt River police officials say officers are directing traffic out of the area for people who have asthma and breathing problems.
It is unknown what started the fire.