The violence, one of the deadliest incidents in football's history, saw hundreds of supporters of Port Said team Al-Masri invade the pitch on February 1 to attack fans of Cairo's Al-Ahly, including by hurling bottles and stones. The violence left 74 people dead. Ibrahim has said most of the deaths were caused by the crush but medics said some people were stabbed. Hundreds were also reported wounded. Police said 47 people had been arrested.