Barry Jenkins, foreground left, and the cast accept the award for best picture for "Moonlight" at the Oscars on Sunday, Feb. 26, 2017, at the Dolby Theatre in Los Angeles. Picture: Chris Pizzello/Invision/AP


#BestPicture The biggest story of #Oscars The full Video! Moonlight WINS, not La La Land! #OscarOops #SteveHarvey

— ✖✖ ALLEGEDLY ❌❌ (@chuckynachos) February 27, 2017 The company said in a statement: "We sincerely apologise to 'Moonlight', 'La La Land', Warren Beatty, Faye Dunaway, and Oscar viewers for the error that was made during the award announcement for Best Picture.

"The presenters had mistakenly been given the wrong category envelope and when discovered, was immediately corrected. We are currently investigating how this could have happened, and deeply regret that this occurred. We appreciate the grace with which the nominees, the Academy, ABC, and Jimmy Kimmel handled the situation."

The company previously explained that, for security purposes, they have two sets of briefcases at the side of the stage at the ceremony, which each contain the evening's results.

Brian Cullinan of PwC said: "From a security perspective, we double up everything.

"That's why there's two of us. We have two briefcases, that are identical, and we have two entire sets of winning envelopes. Martha [L. Ruiz] carries one of those briefcases, I carry the other.

"We go to the show separately with police escorts. I used to think it was for our security, it's really for the briefcase [laughs]. 

"We take different routes to get there just because of the kinds of things that can happen in L.A. traffic. We want to make sure that no matter what happens, one of us gets there. We've never really had a problem with that."