California ? Homicide detectives are investigating the death of a woman believed to have been killed by drinking too much water in a radio station contest.

On a tape of the Jan. 12 show, disc jockeys on KDND-FM’s “Morning Rave” joke about the possible dangers of consuming too much water, at one point alluding to a college student who died during such a stunt in 2005.

A listener called the show to warn the DJs that the stunt was dangerous and that someone could die.

“Yeah, we’re aware of that,” one of them said.

Another DJ laughed: “Yeah, they signed releases, so we’re not responsible. We’re OK.”

The Sacramento County Sheriff’s Department decided to pursue the investigation Wednesday after listening to the tape, obtained by The Sacramento Bee newspaper, sheriff’s spokesman Sgt. Tim Curran said.

Jennifer Lea Strange, a 28-year-old mother of three, died after participating in the contest to win a Nintendo Wii gaming console.