'X Factor:UK' Host Dermot O'Leary. Photo: Twitter.

The X Factor: UK host Dermot O’Leary confronted fans of the British Arsenal soccer club in a bar after hearing them make anti-Semitic remarks about London rivals Tottenham Hotspur, the UK’s Jewish News reported on Thursday.

O’Leary was in Belgium with journalist Boyd Hilton watching Arsenal’s Champions League match against Anderlecht when he heard the fans chanting in the bar after the game.

Hilton said in his football podcast that “Arsenal fans started singing words like ‘Yiddo,'” The Sun reported. Some soccer fans then hissed, imitating gas chamber sounds.

“Dermot was ready to physically have a go at them,” Hilton said. “He was furious.”