The death toll from a police shooting after Italy's World Cup victory rose to seven after several of the injured died in hospitals, officials said Tuesday.

Police were investigating Sunday's shooting, which began after a celebratory crowd started setting off fireworks in the street, Col. Pierre-Claver Gahungu said.

The mayor of Bujumbura's northern district said police launched a grenade and shot blindly into the crowd.

"Unfortunately others might die due to serious injuries they have," Cibitoke Mayor Eric Masumbuko told The Associated Press.

Two victims died at the scene Sunday.

This central African nation is emerging from a 12-year civil war that has killed more than 250,000 people, most of them civilians who died of disease and hunger.