Bayer Leverkusen lifted the Bundesliga title for the first time in their 120-year history on Sunday, a 5-0 victory over Werder Bremen breaking Bayern Munich's 11-year stranglehold on the German top flight.

Xabi Alonso's Leverkusen knew victory would secure the title with five games to spare, but there were no signs of nerves in a dominant performance.

A hat-trick from Florian Wirtz and goals from Victor Boniface and Granit Xhaka extended their unbeaten run to a stunning 43 games in all competitions.

Leverkusen's maiden title, coming after five second-place finishes in their history, keeps their dream of a remarkable treble alive while shedding their unwanted 'Neverkusen' nickname for good.

With 10 minutes to go, the long-suffering fans began making their way to the sidelines and a few jumped the gun, storming the pitch with the match still ongoing.

Leverkusen's players ushered the fans back and some obliged, albeit briefly, with the stands swiftly emptying on the 90-minute mark as tearful fans made their way onto the grass to celebrate with the players.

Leverkusen are now on 79 points – the best tally after 29 games in German league history – and are 16 clear of second-placed Bayern and third-placed Stuttgart. (AFP)