Shooting broke out at around 9.30 p.m. (2130 GMT) in the Cocody neighbourhood near the national police and gendarmes academies and lasted for around an hour, according to one Reuters witness.
A second Reuters reporter later heard sustained gunfire near the base of the police anti-riot brigade in the Yopougon neighbourhood in northern Abidjan.
A local resident also said shooting broke near a police station in another part of Yopougon.
"On the radio in the station they were talking about an attack a bit all over the place, including the police academy as well as Angre and Attoban (neighbourhoods)," a police officer told Reuters, asking not to be named.
The move was seen as an attempt to put a stop to successive waves of armed uprisings launched by members of the security forces demanding bonus payments.
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)