Search teams are looking for a small, private plane carrying three family members after it failed to reach its intended destination in Washington state on Saturday, according to investigators, The Chicago Tribune reported.

The aircraft with three people onboard, including the pilot, took off from western Montana at approximately 4 p.m. on Saturday and was expected to land in Lynden, Wash., at around 7 p.m. The three people aboard have been identified by the Department of Transportation as Leland Bowman, 62, and Sharon Bowman, 63, both from Marion, Montana, and their 16-year-old step-granddaughter Autumn Veatch of Bellingham, Wash., according to Fox News.

Family members got in touch with authorities after the plane, described as a white and red Beech 35 aircraft, did not arrive in Lynden, a sparsely populated town near the U.S.-Canada border. The last cellphone signal from one of the passengers was detected at about 11 p.m. on Saturday near the city of Omak, Wash. No sightings of the plane or debris have been reported yet, according to NBC News.

Volunteers from the Civil Air Patrol and Washington Air Search and Rescue are working with the Department of Transportation Aviation Emergency Services to conduct the search, which has been centered on an area along the plane's flight patch south of Mount Baker.