PRINCETON (AP) -- A marine who graduated from St. Cloud Technical High School has died of injuries suffered during his second tour in Afghanistan.

The Department of Defense says 21-year-old Corporal Sean Osterman of Princeton died Thursday.

A family statement says he was a 2007 graduate of Tech High School.  Osterman's mom, Kelly Hugo, is a guidance counselor at North Junior High.

He had been in Afghanistan since about Thanksgiving.

He will be buried at Arlington National Cemetery.  A local memorial service will be planned.