Police in Maryland are searching for a missing 51-year-old Kent Island woman who disappeared under suspicious circumstances and whose body may be in the Chesapeake Bay.

Authorities started looking for Robin Lee Pope on Saturday, after she was reported missing by her estranged husband.

In the past few days, Maryland Natural Resource Police divers have searched the Chesapeake Bay in the area behind the home that the couple once shared in Stevensville, Md. A Natural Resources Police boat equipped with sonar has also been scanning the water. Police and a citizen search team have been on Kent Island, looking for clues on the ground, according to Maryland State Police.

"Our goal is to find her," said state police spokesman Greg Shipley.

Pope's estranged husband told Queen Anne's County sheriff's deputies that his wife had come to the home that they had shared on Friday evening in order to retrieve some belongings. He said that he left the home after Pope arrived, and when he returned the next morning, she and her 11-year-old Great Dane were gone. However, Pope's 2011 Infiniti remained at the house, and police found her keys, purse, credit cards and cash inside it, police said.

The dog was found dead Saturday along the shoreline near a pier at a neighboring home. A veterinarian has found that the dog did not die of external injuries and did not drown, but a precise cause of death had yet to be determined Tuesday, police said.

Pope is described as a white female, 5-foot-4 and 105 pounds, with brown hair.

Anyone with information can call Maryland State Police at 410-758-1101.