The defender headed a 90th-minute equaliser to hand the Canaries a point at Goodison Park on Saturday.
And chief executive David McNally has confirmed the club will investigate the comments.
McNally tweeted: "For those asking last night, we will be following up with the police regarding the racist comments reported after the game.
"Not relevant which team they support. Don't accept racism from anyone and so these comments will be reported to the police."