UPDATE: Deputies say Richard Biscoglio has been found safe.
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TULSA, Okla. (KTUL) -- Tulsa County Sheriff's Office issued a missing and endangered adult alert for 66-year-old Richard Biscoglio Friday morning.
The alert was initially issued as a silver alert at approximately 12:51 a.m. but was amended to a missing and endangered adult.
TCSO said he has a number of serious health issues that require medication as well as oxygen.
Biscoglio has not been seen or heard from since Tuesday morning.
There is no vehicle description available at this time due to Biscoglio not currently driving.
Anyone with information on his whereabouts should contact 911.