A supposedly official bracket shared on Twitter during the NCAA tournament selection show Sunday turned out to be completely accurate.

The show announced all the teams playing for the 2016 basketball national championship about an hour after the image started making its way through social media.

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The bracket accurately shows all 68 teams and first 36 matchups.

NCAA officials are investigating the leak.

"We go through great lengths to prevent the tournament field from being revealed early and the NCAA too its usual measures to protect this from happening," officials said in a release. "Unfortunately, and regrettably, the bracket was revealed prior to our broadcast partners having the opportunity to finish unveiling it. We take this matter seriously and we are looking into it."