Ten of the Al-Masry football team ultras, convicted in the 'Port Said Massacre' case, currently held in the Mostaqbal Prison of Port Said, have shown symptoms of acute food poisoning, including vomiting and diarrhea.
They were taken to the prison hospital for treatment, and returned back to prison after they recovered.
Prosecutors are investigating the incident.
Edited translation from Al-Masry Al-Youm
