The Mankato Department of Public Safety reports that no one was injured in a structure fire on Sunday morning. Around 5:15a.m., Public Safety was dispatched to the fire on 4th Avenue; they found that an outbuilding was on fire with a nearby building beginning to burn. Firefighters were able to extinguish the fire. It’s estimated that the fire caused $15,000 in damages. The cause of the fire is under investigation.