MILWAUKEE (CBS 58) -- A student at Assata High School in Milwaukee was shot and killed while leaving school on Friday, Nov. 14. 

According to Milwaukee Public Schools (MPS), the student leaving the high school -- located on Courtland Avenue -- had early dismissal and after leaving the school they were shot. 

The shooting happened near N. Hopkins and W. Glendale Ave. around 11:51 a.m. according to Milwaukee police. The suspects in the shooting attempted to rob the student when shots were fired, hitting both the student and a suspect. 

The 18-year-old student returned to the school for help, prompting the school to go into lockdown. The student was transported to a local hospital for serious injuries and later died. 

The 17-year-old suspect was also transported to an area hospital for treatment of non-fatal injuries and is in police custody. 

The lockdown remains in place Friday afternoon and Milwaukee police are seeking out additional suspect(s). 

Anyone with information is asked to contact the Milwaukee Police at (414) 935-7360 or, to remain anonymous, contact Crime Stoppers at (414) 224-TIPS or P3 Tips.