Waruru scored two late goals in Kisumu to deny K’Ogalo all three points.
And after he completed his brace in the 88th minute, the match was put on hold for 10 minutes while a section of Gor fans reacted violently to the equaliser.
Gor Mahia subsequently accused Waruru of instigating the angry outbreak with an insulting gesture.
“It is uncouth and barbaric of Waruru to provoke our fans by using his middle finger to insult our travelling fans,” read a statement on their Facebook page.
But Waruru has claimed there is no truth to K’Ogalo’s allegations.
“Those are blatant lies and people are just trying to justify acts of hooliganism. No one raised a finger to them.
“I just celebrated my goal by removing my jersey. Them turning it around and saying I made an abusive gesture is quite unfortunate,” Waruru, the league’s top scorer, told the Daily Nation.
Ulinzi vice-chairman Major Joe Birgen also defended the striker, and added that some of his players were injured in the fracas.
“Waruru always raises his fore finger skywards whenever he scores and that is what he did and it is not provocative. A number of our players were injured so we have a committee meeting today to discuss the issue and deliberate on our next move,” said Birgen.
Gor are said to be facing the possibility of a stadium ban, a hefty fine and even the docking of points.