A gunman in eastern Kentucky state in the United States killed five people with a shotgun before turning the weapon on himself on Saturday, local authorities said.

The shooting happened in a trailer park in the Mount Carmel community outside Jackson around 11:35 a.m. Saturday local time, Kentucky State Police said.

The shooting appeared to be a domestic situation, but it was too soon to make a complete determination, police said.

Police said they had no information about the ages of or relationships between the victims.

Authorities started receiving calls about multiple gunshots shortly after 11:30. Police found five victims when they arrived about an hour later, and "also a sixth person who's believed to be the alleged perpetrator."

Police said the sixth victim appeared to have turned the shotgun on himself after killing the other five.