DEVELOPING: Authorities are investigating reports of an armed student holding a classroom hostage at a high school in Wisconsin.

Police are on scene and no injuries are reported at this time, Marinette County Emergency Management said in a news release, without confirming a hostage standoff.

Police received a call just before 4 p.m. local time of an armed student at Marinette High School. Parents were asked to respond to the county courthouse to receive information on their children.

FOX