UPDATE: This Silver Alert was discontinued at 12:20 p.m. Saturday afternoon.

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Officers from the Richardson Police Department are searching for Ricky Lee Shockley, a 67-year-old local man who was last seen at 604 West Shore Drive in Richardson, Texas.

Shockley was reportedly last seen wearing a green or brown hat, possibly a blue and white shirt, brown pants and dog tags.

Police believe Shockley's disappearance poses a credible threat to his own health and safety, as he has been diagnosed with a cognitive impairment.

If you or anyone you know has any information about this missing senior, please call the Richardson Police Department at 972-744-4800.