DSS personnel have cordoned off the Sani Abacha Youth Centre, which was supposed to be the site of the APC’s parallel convention.
Security agents who sent journalists away at the center’s gate said they were given orders to take control of the area and prevent any gatherings.
They claimed they were told the Sani Abacha Indoor Sports Hall was the only recognized location for the APC state congress.
Governor Abdullahi Umar Ganduje has earlier declared any other congress meeting illegal at the Sports Hall.
Meanwhile, security agents used tear gas to disperse the masses that had gathered at the Youth Centre on Madobi Road.
One of the teargas canisters was shot into a shop across the street from the center, where some supporters had sought sanctuary.