A Quebec coroner says it appears three people found dead at a nudist campsite, possibly the result of a murder-suicide, were shot.

Dr. Martin Sanfaçon told CBC's French-language service Radio-Canada that when he arrived at the scene Tuesday morning, a home at the Club Naturiste Adam & Eve in Sainte-Brigitte-des-Saults, he found a revolver.

Sanfaçon said it appears the love triangle hypothesis, which was also put forth by Quebec provincial police earlier in the day, appears to be the most plausible explanation for the deaths.

Suzanne Gareau, 50, and Rodrigue Tremblay, 77, as well as the suspected shooter, Denys Carpentier, 76, were pronounced dead at the scene, according to Sgt. Claude Denis.

The events took place up to 24 hours before the bodies were found, Sanfaçon said. Autopsies will determine whether the bullets were fired from the gun that was recovered.

The bodies of two men and a woman were found in this house. Police say it appears the deaths may be linked to a love triangle. (Claude Rivest/CBC)

The campground, which is about 125 kilometres northeast of Montreal, not far from Drummondville, is for "liberated" adults only, according to its Facebook page.

It includes a number of small homes for rent, along with a pool, disco and bar.