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.

Security has tightened at Oktoberfest after a deadly knife attack last month in western Germany, and officials are warning revelers

Far away from the celebrations within Cincinnati, the largest Oktoberfest in the world is now underway at the same exact time this weekend.