A 16-year-old girl is in custody facing possible arson charges. The rural Amboy teen was arrested Sunday evening in connection with a pair of fires in southwestern Blue Earth County that appeared to be intentionally set. Firefighters from Amboy, Vernon Center and Mapleton responded to a barn fire at about 5:20pm Sunday, and a fire in a nearby corn field a short time later. The 16-year-old female was reportedly still in the area when authorities arrived and was taken into custody. The barn was a total loss, and there was minor damage to some of the corn in the field. Fire crews were on the scene for about 2 hours. The girl was being questioned by authorities Sunday night, and more information is expected to be released later today (MON).