Flagstaff police investigating possible arson at a Walmart

FLAGSTAFF, Ariz. (AP) — Authorities in Flagstaff are investigating a possible arson at a Walmart store, which will remain closed until further notice due to severe fire and water damage.
Flagstaff police responded to the scene around 3 a.m. Saturday and reported heavy smoke inside the store and the sprinkler system activated.
Store employees told officers on the scene that a man was seen leaving sections of the store where the fire started.
They provided Flagstaff police with a description