FIFA opened a second investigation on Thursday into potentially discriminatory chants heard from Mexico supporters during their 2-1 win over Saudi Arabia in their group stage closer.

"The FIFA Disciplinary Committee has opened proceedings against the Mexican Football Federation due to chants by Mexican supporters during the Saudi Arabia v. Mexico FIFA World Cup match played on 30 November. The proceedings were opened on the basis of article 13 of the FIFA Disciplinary Code," read a statement from the organising committee.

The news follows a similar proceeding by FIFA against the Mexican Football Federation (FMF) earlier in the tournament. Following a 0-0 draw with Poland in El Tri's group stage opener, FIFA announced that they had started an investigation on chants from Mexico's supporters.

FIFA gave no timetable for dealing with the cases against Mexico and have yet to announce a resolution for the first investigation.