The scheduled meeting of National Assembly principal officers has been postponed.
Deputy Speaker of the House of Representatives, Yusuf Lasun told reporters that the meeting can no longer hold for security reasons.
Lasun said although he came for the meeting, the situation in the complex is not conducive for any meeting.
He did not say when the meeting is likely to hold.
Operatives of the Department of State Security had early on Tuesday taken over the entries of the National Assembly complex claiming to be acting on orders from above.
Senators and some staff of the assembly were initially denied entry but were later allowed to enter after some heated arguments.
Later on Tuesday, a new set of operatives arrived at the NASS gate to take over from those stationed at the gate since 6.30 am.
Journalists and workers were still barred from gaining access into the complex as at press time.