One Hamburg SV fan suffered "life-threatening injuries" and 19 more were seriously injured in celebrations after the team's return to the Bundesliga, local fire services said on Sunday.

Hamburg have earned promotion back to the Bundesliga to end a seven-year absence from the German top flight.Needing a win to confirm their return, the six-time German champions thrashed Ulm 6-1 at home on Saturday and fans engulfed the pitch at the Volksparkstadion at the final whistle to celebrate.

Fallen German giants Hamburg won automatic promotion to the Bundesliga after a seven-year absence with a 6-1 home thumping of lowly Ulm on Saturday. The victory took Hamburg one point clear of Cologne atop the Bundesliga 2 table.