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RENO, Nev. (AP) _ No criminal charges will be filed in the drowning of a fraternity pledge in a lake at the University of Nevada, Reno, prosecutors said Thursday.

Albert Santos, 18, drowned in Mazanita Lake Oct. 10 while swimming with other pledges. Assistant District Attorney John Helzer said that investigators determined the pledges decided on their own to swim to a fountain in the middle of the lake, and had not been ordered to by upperclassmen in the Phi Kappa Alpha fraternity.

Hazing is a misdemeanor in Nevada.

Helzer's decision came one day after the university banned the fraternity indefinitely as a result of the drowning.