Colorado plane crash
© EPA
A small plane believed to be carrying five people crashed into a reservoir in southwestern Colorado and authorities say they don't think anyone survived.

The single-engine Socata TBM700 was flying from Bartlesville, Oklahoma, to Montrose, about 180 miles southwest of Denver, when it went down Saturday, Ouray County spokeswoman Marti Whitmore said.

Federal Aviation Administration spokesman Ian Gregor said the crash occurred just before 2 pm, but the cause was unknown. The aircraft went down in Ridgway Reservoir, about 25 miles south of Montrose.

Rescue efforts started in the afternoon and were suspected shortly after sundown until Sunday morning, Whitmore said. She said no one is believed to have survived, but no victims have been recovered.

The identities of the occupants were being withheld until relatives could be notified. The plane is registered to an Alabama corporation. Messages left for the company Saturday evening weren't immediately returned.