Members of the Parliamentary Staff Association of Nigeria (PASAN) have begun their four-day warning strike.
The workers had issued a strike notice on Sunday. As of the time of filing this report, entrances to the assembly complex had been blocked while the workers also cut off water and power supply to the premises of the assembly.
They are demanding to be paid outstanding salaries and allowances.
The workers also want to be put on the Consolidated Legislative Salary Structure (CONLESS).
On December 4, they shut down activities of the national assembly and prevented lawmakers from sitting.
The strike was suspended after Senate President Bukola Saraki and Yakubu Dogara, speaker of the house of representatives, intervened.
In a meeting, the duo directed Mohammed Sani-Omolori, clerk of the assembly, to ensure that the workers demands were met.
Before the workers embarked on the strike on December 4, Sani-Omolori had in a letter to PASAN, explained that their demands could not be met because of poor budget releases.
President Muhammadu Buhari is expected to present the 2019 budget proposal to a joint session of the national assembly on Wednesday.