An investigation is underway into the deaths of Gene Hackman and his wife, Betsy Arakawa, who were found dead at their home in Santa Fe, N.M., on Wednesday.

Mr. Hackman’s body was found in a mud room, and Ms. Arakawa’s on the floor of a bathroom, according to a search warrant affidavit. A dead German shepherd was discovered in a closet of the bathroom near Ms. Arakawa.

The sheriff’s office in Santa Fe County, which is conducting the investigation, said in a statement on Thursday afternoon that “there were no apparent signs of foul play.” There were no obvious signs of a gas leak in the home, according to a search warrant affidavit, and the Fire Department did not find signs of a carbon monoxide leak.

Here’s what we know.

What happened?

According to the sheriff’s office, deputies were called to the home after a maintenance worker who had gone to the home to perform some work on Wednesday afternoon grew concerned when no one answered the door. The worker asked local security to do a welfare check, and when they arrived and saw unresponsive bodies through the window, they called 911.

Deputies found Ms. Arakawa lying on her side on the bathroom floor with a space heater near her head, which could have fallen with her, the affidavit said. An open prescription bottle and scattered pills were near her body on a counter in the bathroom.