SILVER ALERT UPDATE AS OF SEPT. 1, 3:00 P.M.:

A silver alert was issued by police on Aug. 30 for 86-year-old Robert Mundine after he went missing in Broken Arrow.

Investigators now have reason to believe that he may have been picked up by a passing vehicle sometime around 2:45 p.m. near 2100 East Omaha Street in Broken Arrow.

Police ask that you call (918)-259-8400 and reference case number 22-5991 if you were in that area and observed or made contact with Mundine.

Mundine was last seen wearing a grey shirt and black pajama pants, police said. Police said he has dementia and heart conditions.