An unknown number of others in the country’s largest southern city were injured when security tried to stop clashes over a disputed penalty,

The violence took place after some fans were unhappy with the referee’s decision and stormed the pitch, according to witnesses.

At least 56 people were killed on Sunday in a crush following clashes at a football match in Guinea's second city, Nzérékoré, officials said, while hospital officials said the final death toll could top 100.