YAOUNDE, Cameroon—At least six people died in a crush outside a stadium hosting a game at Africa’s top soccer tournament in Cameroon on Monday, a local government official said, realizing fears over the capacity of the Central African country to stage the continent’s biggest sports event. Naseri Paul Biya, the governor of the central region of Cameroon, said there could be more deaths. “We are not in position to give you the total number of casualties,” he said. The crush happened as crowds struggled to get access to Olembe Stadium in the capital city of Yaounde to watch the host country play Comoros in a last 16 knockout game in the African Cup of Nations. Officials at the nearby Messassi hospital said they received at least 40 injured people, who were rushed to the hospital by police and civilians. The officials said the hospital wasn’t capable of treating all of …