SAN MATEO COUNTY -- Officials are looking for a 25-year-old man who has been missing since leaving his San Carlos residence more than two weeks ago.

According to a San Mateo County Sheriff's Office news release, Dereck Ohlsen was last seen around 10:30 p.m. Sept. 4. He had been home bound for the past two years, but for about two months has taken to going on long walks throughout San Mateo County, according to the sheriff's office. He recently has been telling his family that he wanted to walk to San Jose to visit his grandparents.

Anyone with information about Ohlsen is asked to call detective Ken Clayton at 650-363-4050 or 650-363-4911.