NEW BRUNSWICK, N.J. (AP) _ Fifteen students from a Rutgers University fraternity pleaded innocent Friday to charges of aggravated hazing in the drinking death of a freshman pledge three months ago.

Superior Court Judge George J. Nicola released the students on their own recognizance. They are to appear at a pre-trial conference July 5.

The students were indicted in the Feb. 12 death of James Callahan, 18, of North Bergen. Middlesex County Prosecutor Alan Rockoff said an autopsy showed Callahan died from alcohol poisoning after drinking a huge quantity of alcoholic beverages at a Lambda Chi Alpha initiation party.

An autopsy showed Callahan had a 0.434 percent blood alcohol content, or four times the amount to be considered legally drunk.

Rockoff said the aggravated hazing charge carries a maximum sentence of 18 months in prison and a $7,500 fine.