The state news agency MAP said it's unclear why the deadly violence erupted Saturday evening after Raja Casablanca beat Chabab Rif Al Hoceima 2-1.
Raja, the second ranking soccer team in the North African country after rival Wydad Casablanca, was sanctioned today morning by the Royal Federation of Moroccan Football, which said it "deplored" the violence.
Raja and its supporters have previously been sanctioned, along with Wydad and its supporters, for repeated bouts of violence during and after matches that have left dozens injured, including police.