At least six people have been crushed to death outside the stadium that hosted the 2021 Africa Cup of Nations game between Cameroon and Comoros.
The Governor of the central region of Cameroon, Naseri Paul Biya, has admitted there could be more casualties.
The crush happened as people struggled to enter the Olembe Stadium, to watch the host country play Comoros in a last-16 fixture.
Videos on social media showed fans storming the stadium gates, while pictures appear to show some fans laying injured on the ground.
Witnesses at the stadium claimed that children were among those caught up in the crush, while others said it happened when stadium stewards closed the gates and stopped allowing people in.
Officials at the nearby Messassi hospital have confirmed they had received at least 40 injured people from the crush, who were rushed to the hospital by police and civilians.
It is understood that around 50,000 fans tried to attend the match. The stadium has a capacity of 60,000, but it was not meant to be more than 80% full for the game due to restrictions on the size of the crowd because of the coronavirus pandemic.