The assault late yesterday saw two unidentified attackers hurl a grenade at a cafe named "On the Crossroads of Peace" during a concert by local singer Ozaguin, said Herve Verhoosel, spokesman for the UN peacekeeping force MINUSCA.
The cafe is located near the PK5 majority Muslim district of Bangui, once a Muslim rebel bastion, and now home to several armed groups.
Even though relative peace has been restored in Central Africa following the civil war that erupted in 2013, inter- communal tensions remain.
A doctor at the hospital where the injured were rushed for treatment said 21 people had been admitted.
A witness who did not give his name said the attackers had launched four grenades at the cafe.
In a video posted on his Facebook page, the singer Ozaguin -- dubbed the king of Central African rumba -- confirmed six of his fellow musicians had been injured.
Disclaimer: No Business Standard Journalist was involved in creation of this content