DAILY POST reports that the state chapter of PDP had two parallel congresses on Saturday.
The faction had been holding their congress at Jogor Centre before the hoodlums struck.
The attackers, who arrived the venue around 1.pm, operated for more than 20 minutes.
During the attack, a member of the party, whose name has not been revealed, was macheted.
Other attendees of the congress were also injured.
More than 100 vehicles, which included cars and buses, had their windscreens broken by the attackers.
One of the vehicles that were vandalized belonged to a television station, Murhi International Television (MITV), in Ibadan.
It however took the intervention of security agents among whom were men of Department of State Service (DSS), Police and Nigeria Security and Civil Defence Corps (NSCDC) to save those who were at the venue.
