Witnesses have reported hearing heavy gunfire at the headquarters of Democratic Republic of Congo's state radio and television station.
Both channels were off air after the shooting was heard.
State television journalists at the site said the Congolese army had launched an attack on the building to dislodge unidentified assailants.
More top news
Children are being put at risk as 11% of posts for permanent children's social workers remain unfilled, experts have warned.
A Network Rail boss who presided over the Christmas trains chaos will not receive a bonus of more than £300,000 when he leaves in February
Twice as many people expect their financial situation to worsen next year than those who believe things will improve, a poll has found