Major League Soccer is conducting an investigation after a Red Bulls player allegedly used a racial slur in a draw vs. the Earthquakes on Saturday night. The game between New York and San Jose was paused for 18 minutes in the second half with forward Dante Vanzeir at the center of the investigation.

“MLS has zero tolerance for abusive and offensive language and takes these allegations very seriously,” the league said in a statement. “An investigation into this matter will begin promptly. Further information will be provided upon completion of that investigation.”

The Red Bulls also released a statement, deferring the investigation to the league.