Hoodlums on Wednesday stormed the Senate chamber during the plenary session and took away the Mace.
The Mace is the symbol of authority in the National Assembly.
There was confusion in the chamber as Senators scampered for safety.
The Deputy President of the Senate, Ike Ekweremadu, who presided over the day’s plenary, confirmed the incident.
He said the invaders would be punished for disrupting the plenary.
The incident reportedly happened after suspended Senator Ovie Omo-Agege entered the chambers.