Fans in Kinshasa grew angry on Sunday evening after their local team was defeated 1-0 by a team from the eastern town of Lubumbashi in a heated final, according to the local minister for the capital's inner city.
"Four policemen were harassed by supporters. When they fired tear gas, the stampede began, causing the deaths," Emmanuel Akweti told Reuters.
Akweti said 15 people died of suffocation and 24 were injured.
More top news
The hunt for a blind WWII veteran's medals has intensified after Crimestoppers offered £5,000 for information which leads to their return.
A Cornish village fundraising to develop a community centre were helped out with a donation from an unlikely source - the Emir of Dubai.
Thursday will be an unsettled day across many northern areas with outbreaks of rain which could be heavy, accompanied by strong winds.