Carroll said he and his teammates were disgraceful in the damaging defeat at King Power Stadium.
"It was absolutely shocking," said the Englishman to the Evening Chronicle.
"It was absolutely terrible and the gaffer is fuming in there. And rightly so - it was terrible.
"It was disappointing to come off with 10 men.
"That doesn't mean we should give up. We were still in the game until the second goal.
"The heads went down. We have got strength in the dressing room and a great attitude in training.
"But what happened was a disgrace."