OKLAHOMA CITY - The Oklahoma City Police Department has issued a Silver Alert for a missing 65-year-old woman.

According to the report, Mary Ann Allen didn’t show up for her doctor’s appointment, scheduled for Wednesday, August 30.  Police said she was last seen at 2851 NW 16th Street around 3:00 a.m. Thursday.

Allen is described as a black female standing at 5’06” and weighing 170 pounds. She was last seen wearing a white tank top, light blue jeans and flat shoes with flowers on them.

She drives a 2004 black 2-door Honda Accord with Oklahoma license number CHW441.

Police are concerned for Allen’s whereabouts because she suffers from emphysema and diabetes that require medication. Also, Allen is reportedly losing vision in her eyes.

If you have information on Allen’s location, call 911.