The revelers celebrated Saturday to mark the official opening of the world's largest folk festival. Mayor Dieter Reiter started the celebration at noon when he inserted the tap into the first beer keg.

MUNICH (AP) — Oktoberfest has opened in Munich after the ceremonial beer keg-tapping. Mayor Dieter Reiter officially started the 189th Oktoberfest at noon when he inserted the tap into the first keg. The celebration runs through Oct. 6 in 18 large tents covering the fairground and is considered the world’s largest folk festival.

Oktoberfest will open after the ceremonial keg-tapping by Munich Mayor Dieter Reiter when he inserts the tap into the first keg at noon on Saturday