GILBERT, Ariz. - The Gilbert Fire Department is looking for a young man in relation to Saturday night's big fire at an apartment construction site.

The man is described as a 16-22-year-old between 5-foot-7 and 5-foot-10 with shaggy-looking brown hair and no facial hair.

The man was believed to be wearing a maroon ASU sweatshirt with black or dark gym shorts and long socks with casual sneakers at the time of the fire and was in the area.

They believe this person may be a witness or have information about the fire and investigators are trying to track him down.

If you have information about this person, you can contact Gilbert FD at 480-503-6346.