National Assembly workers, under the auspices of the Parliamentary Staff Association of Nigeria, have begun their four-day warning strike, blocking all entrances to the complex.
The workers barricaded the entrances to the National Assembly Complex in the early hours of Monday to prevent entry.
They also shut down power and water supplies to the building.
The blockage of all entrances to the building and power outage has forced banks, restaurants and other businesses to close.
More security operatives were seen around in a bid to prevent a breakdown of law and order.