(KLZA)-- An Oregon, Missouri teenager drowned over tthe weekend while swimming in the Missouri River in Holt County..

The Missouri Highway Patrol reported 18-year-old Alexander Harris, a recent graduate of South Holt High School in Oregon ,was swimming a half-mile north of Payne's Landing Saturday afternoon when he attempted to assist another struggling swimmer.

The Patrol says Harris went under the water and did not resurface.

His body was recovered Sunday. 

Members of the Missouri Conservation Service, Holt County Fire Department, Red Oak, Iowa, Dive Team and Clarinda, Iowa Dive Team assisted at the scene.

A candlelight memorial was held Sunday evening at the South Holt High Football Field.

Counselors and clergy were available Monday at the school for students, parents and staff to meet with.