A Bend family is asking for help after their 79-year-old father, who suffers from dementia, went missing on Monday morning.

According to the Deschutes County Sheriff’s Office, Richard Brownrigg left his home in Northwest Bend around 7 a.m. on Monday. He left a business in the Old Mill District around 8:20 a.m. and is believed to be driving a 2007 lifted black Ford F-150 with tinted windows and a personalized Oregon license plate that says “RIGGER.” The pickup has a silver toolbox in the bed.

Brownrigg is described as 6 feet tall and 170 pounds with white hair and blue eyes, and was last seen wearing blue jeans, a button-down shirt and white tennis shoes.

Brownrigg is reportedly in good physical condition and doesn’t have any immediate medical concerns, but does suffer from early dementia and may become confused. According to the Sheriff’s Office, Brownrigg’s family describes him as independent and as someone who wouldn’t ask for help. He has ties to Bellingham, Wash., and Neskowin.

Anyone who has seen Brownrigg or his vehicle is asked to call the Deschutes County non-emergency dispatch at 541-693-6911.