Thousands of boxing fans packed into the Odyssey arena last night to see Carl Frampton defend his belt against Chris Avalos.
After a strong start Frampton sent Avalos to the mat in the fifth round and the referee stepped in.
First Minister Peter Robinson was among those to congratulate the Tigers Bay winner.
On Twitter he said: “Peter Robinson @DUPleader: Super win. Super champion. Proud to be from Northern Ireland.”
Deputy First Minister Martin McGuinness also tweeted: “ Martin McGuinness @M_McGuinness_SF: Congratulations @RealCFrampton,
great defence from a worthy World Champion. #impressive”.
Ulster comedian Patrick Kielty also tweeted: “ @PatricKielty: Last time a yank got killed that quickly in Belfast was in Game of Thrones. And still...@RealCFrampton - Proud of you our kid!”
Coronation Streets Jim McDonald aka Charlies Lawson said: “@charlie_lawson1: Bloody Great!! Barry is King!! Carl his Prince chasin his crown!!”
And fellow boxing champion Katie Taylor tweeted: “@KatieTaylor: Another incredible performance from @RealCFrampton. What a champion!”
Sports Minister Carál Ní Chuilín also congratulated Carl Frampton on retaining his IBF World Super-Bantamweight title.
In congratulating the Belfast man on his victory the Minister said; “Belfast has had many great boxing nights’ and last night was no different with Carl displaying all the talents that have made him a world champion. He fought cleverly from start to finish and his performance in the fifth round was truly clinical.
“He is a great ambassador for the city and the country and his performance against Chris Avalos shows why he is undefeated in his professional career. He has all the talent and attributes to become a boxing ‘great’ and I wish him continued success in his chosen sport.”