There are no official data on casualties yet.
“It all started with the contested decision of the arbitrator. Then the fans stormed the field,” one of the eyewitnesses told AFP.
Videos and images on social media show chaotic scenes outside the stadium, with large crowds trying to climb over walls and many bodies on the ground.
The BBC has not been able to independently verify these videos.
Regional authorities are working to “restore calm,” Prime Minister Bach said in a statement, adding that hospitals were helping the victims.
Thousands of spectators were present when a stampede broke out at a match between Guinean teams N’zérékoré and Labé, local news site MediaGuinee reported.
It said Sunday’s match was part of a tournament in honor of President Mamadi Dumbui, who seized power in a coup d’état in September 2021.
The stadium also saw one of the worst massacres in Guinea’s history.
In 2009, 156 people were killed after troops opened fire on an opposition rally in a stadium in the country’s capital, Conakry.
Many were shot, stabbed, beaten or crushed in the stampede as security forces fired tear gas and rushed the stadium. Dozens of women were also raped.
Former military leader Musa Dadis Kamara was recently convicted up to 20 years of imprisonment for crimes against humanity in connection with the massacre.