Workers at the National Assembly, under the auspices of the Parliamentary Staff Association of Nigeria, have begun their four-day warning strike.
The workers stormed the entrances to the National Assembly Complex in the early hours of Monday to barricade the gates and prevent entry.
More security operatives have been deploy to manage the protesters.
Workers at the National Assembly have now shut down power and water supplies to the complex.
The blockage of all entrances to the building has forced banks, restaurants and other businesses to close shops.
Petty traders are now making brisk business, especially those selling water and snacks.
