Police are investigating after at least six students overdosed on a "possibly tainted batch of cocaine" at a fraternity house.

University of Colorado Boulder students on Monday reacted to the news that six students were given Narcan after overdosing on drugs that were tainted.

Coming off a troubling weekend in which six young men got ill at a fraternity party, there's renewed talk about the dangers of drug contamination at the University of Colorado in Boulder.

Police in Boulder are issuing a warning about possibly tainted drugs after six men at a Kappa Sigma fraternity house party were hospitalized for cocaine overdoses Saturday night.

All six are in stable condition after overdosing on a batch of cocaine that was possibly tainted during a party, Boulder Police said.

At least six members of the Kappa Sigma fraternity were sick and/or overdosing on Saturday, according to Boulder police. Narcan was administered to at least some of them, either at the hospital or at the fraternity house on Pennsylvania Avenue.

Boulder police are investigating after six men overdosed on a potentially tainted batch of cocaine at the Kappa Sigma fraternity house Saturday night.

An investigation is underway after six college students overdosed on potentially tainted drugs at a fraternity party.

The Boulder Police Department is investigating after six college students were taken to the hospital after overdosing on possibly tainted cocaine at a party Saturday night.