KNOXVILLE, Tenn. (WATE) — The Tennessee Bureau of Investigation issued a Silver Alert for a man missing from Knoxville.

The WPD said he was last seen around 12:30 a.m. on December 22, leaving his home in the 5800 block of E. Rockhill.

A Silver Alert has been issued for an elderly Vancouver man who drove away from his home early Saturday morning.Vancouver Police say 86-year-old Richard Jamsgard is considered to be endangered due to his age and advanced cognitive issues.

A Silver Alert was issued for a missing at-risk 65-year-old woman, according to an alert by California Highway Patrol. Mary Acuna was last seen on Tuesday around 2 p.m. in San Jose. Acuna was last seen around South 9th Street and Margaret Street.

A Silver Alert has been activated for a missing 68-year-old Tacoma man. Anthony Lane was last seen about noon in the Norpoint area of the city, according to a bulletin issued Monday about 8:20 p.m. Lane is Black, about 5-foot-4 and 165 pounds with brown eyes and balding gray hair. He was last seen wearing a dark hoodie and flip-flops.

MARION, Ind. — A Silver Alert has been cancelled issued for a missing 23-year-old woman from Marion. The Grant County Sheriff’s Department confirmed that Sarah Miller was found safe. There are specific standards a person's disappearance must meet in order for police to declare an Amber Alert or a Silver Alert.

LAWTON, OK (KOKH) — Have you seen him? The Oklahoma Highway Patrol (OHP) issued a Silver Alert for 66-year-old Fred Williams. According to OHP, Williams was last seen wearing a green jogging suit in Lawton. If you have information on his whereabouts, call 911.

DANE COUNTY, Wis. (WKOW) — A Silver Alert has been canceled for a Dane County man who was found safe Saturday evening. According to the Dane County Sheriff's Office, Thomas White was last seen on camera leaving his home in his black Toyota 4Runner on Dec. 20 at 1:05 p.m. His Wisconsin license plate is 905-ZTU.

AUSTIN, TX - The Texas Department of Public Safety has issued a Silver Alert for a missing elderly man.81-year-old Jaime Tamariz has been missing since 7:00 p.m

A Silver Alert has been issued for a man missing from Fairfield Glade. John Orr, 85, is 5’9″, 160 lbs., with green eyes and grey hair. The Tennessee Bureau of Investigation said he was last seen on Wednesday.

A Silver Alert has been issued for a man in Reno County. Gary M. Foster, 80, was last seen at 5 p.m. He is believed to have left his residence on foot in an unknown direction from the 9800 block of S.