MINNEAPOLIS (AP) — Police say a high school employee was critically injured in an attack by a teenager in Minneapolis.

Authorities say a paraprofessional suffered significant injuries in the attack Tuesday at Harrison Education Center and was taken to Hennepin County Medical Center where he is in critical condition.

Police have an 18-year-old male in custody. School district officials declined to talk about the attack, citing privacy laws.

Harrison is an alternative high school for students with severe behavioral or emotional disorders.