Abidjan, Ivory Coast (CNN) -- Gunmen attacked former Ivory Coast President Laurent Gbagbo's party headquarters Saturday, injuring several people, a party spokesman said.
The attackers wore military fatigues and rode in on a minibus to the opposition Ivorian Popular Front headquarters in Abidjan, Ivory Coast's commercial hub, said spokesman Augustin Guehoun.
Party youth were meeting in the building.
The gunmen sacked the offices and set ablaze a car parked outside.
Gbagbo has been in custody at the International Criminal Court in The Hague, Netherlands.
He stands accused of crimes against humanity during the violence that ensued after Gbagbo refused to acknowledge defeat to Alassane Ouattara in the 2010 presidential election.