An investigation is underway after actor Gene Hackman, 95, and his wife, Betsy Arakawa, 64, were mysteriously found dead alongside a dog in their Santa Fe, New Mexico, home, authorities said. The couple was found on Wednesday during a welfare check,

The office says it does not suspect foul play, however, an exact cause of death has not been determined. In a search warrant released Thursday, police described Hackman and Arakawa's deaths as "suspicious.