SANTA CLARA — Authorities are searching for a 32-year-old man who left work to go out to lunch on July 12 and has not been heard from since, something police say is out of character and suspicious.

Matthieu Tuvignon, a French citizen who lives in Santa Clara and works in Mountain view, has not contacted family of friends since his disappearance. His last known activity was an “insignificant purchase” at a store at Stevens Creek Boulevard and Winchester Boulevard around 1 p.m.

Police said he has no known medical conditions and takes no prescription medication. His cell phone has been located, but his passport is missing. Police added that he may be in possession of a Glock 9 mm handgun.

Tuvignon is 6-foot-1, and 195 pounds with brown hair and brown eyes. He drives a black 2000 Audi A6, license plate 5RFU983.

Anyone with information about his whereabouts is asked to call Santa Clara police at 408-615-4822.

Contact Eric Kurhi at 408-920-5852. Follow him at Twitter.com/erickurhi.