The trial of 18 Senegalese football supporters accused of hooliganism in their country's Africa Cup of Nations final victory last week opened on Thursday before a Moroccan court, defence lawyers told AFP.
The judge adjourned the hearing until 29 January "to give both the defence and the civil party time to prepare their cases", said lawyer Naima El Guellaf.
A judicial source has told AFP the 18 Senegalese fans were placed in pretrial detention following incidents that disrupted the tournament final in capital Rabat, which Morocco lost to Senegal 1-0 on Sunday in extra-time.
The same source said an Algerian national was also arrested in connection with the case. The defendant's lawyer, Jaouad Benaissi, said his client was a French citizen of Algerian origin.
Minutes before the end of the match, some Senegalese supporters attempted to storm the pitch while Senegal's players halted the game for nearly 20 minutes to protest a late penalty awarded to Morocco.
Some fans also threw objects onto the field, including a chair.
The Confederation of African Football (CAF) said it would take "appropriate action" after reviewing the match incidents, while FIFA President Gianni Infantino condemned the behaviour of Senegal's players and members of the coaching staff.
Separately, a Rabat court on Monday sentenced an Algerian supporter to three months in prison for "public indecency" during another AFCON match after he posted a video in which he suggested he had urinated in the stands, reports said.
Morocco says incidents will not affect ties
Morocco's King Mohammed VI said that African fraternity would prevail after what he described as "deplorable" acts that marred the closing minutes of the AFCON match.
Senegal has long been one of Morocco's closest allies in Africa, where Moroccan firms and banks have expanded investments in recent years, strengthening the kingdom's diplomatic influence.
Hours after the final, social media in both countries was under the spell of tension.
The final had been marred by "regrettable incidents" and "deplorable behaviour," the king said in a palace statement.
"Once the passion and emotions have subsided, inter-African fraternity will naturally prevail," he said.
"Nothing can undermine the close ties forged over the centuries between our African peoples, nor the fruitful cooperation built with countries across the continent and strengthened by increasingly ambitious partnerships," he added.
The tournament had also showcased Morocco's development and represented "a success for all of Africa," he said.