An investigation was underway on Thursday after the prolific actor Gene Hackman and his wife, Betsy Arakawa, were found dead along with their dog at a house in New Mexico, the local authorities said.

The bodies of Mr. Hackman, 95, and Ms. Arakawa, 64, were found by sheriff’s deputies in the Hyde Park neighborhood of Santa Fe on Wednesday afternoon, the Santa Fe County Sheriff’s Office said in a statement. The couple had lived in the Santa Fe area for years.

“Foul play is not suspected as a factor in those deaths at this time,” the sheriff’s office said in a statement early Thursday morning. The exact cause of death was not yet determined, it said.

This is a developing story.