According to authorities on Sunday, a plane carrying a pilot and co-pilot crashed into the Pacific Ocean near the California coast.
The two boarded a Viking Air DHC-6-400 Twin Otter when it crashed just after 2 p.m. from Northern California to Hawaii.
The National Transportation Safety Board informed the Daily News that it was Saturday local time.
“The U.S. About 40 nautical miles southwest of San Francisco, the Coast Guard discovered the plane submerged, according to a statement from the NTSB.
According to the NTSB, no one else was on board the plane, which investigators are currently trying to find. Before the disaster, the pilots signaled a mayday, according to the federal agency.
Neither the cause of the collision nor the identities of those killed have been released by authorities.
The news comes after the NTSB revealed on Saturday that it was looking into a collision roughly 30 miles south of San Francisco, near Half Moon Bay.
According to the Federal Aviation Administration, the jet was traveling from Santa Rosa, California, to Honolulu, which also confirmed that it is looking into the event. The specifics of the flight were kept a secret.
The FAA stated that the NTSB would be in charge of the investigation and offer more details.
The Twin Otter, a 19-passenger aircraft, is referred to on Viking Air’s website as “the best-selling 19-passenger aircraft of all time.”