Nigerian police have arrested suspended Senator Ovie Omo-Agege after he allegedly led a group of protesters to steal the Senate’s mace.
The mace has since been recovered by the police.
Several intruders rushed into the upper chamber of the country’s parliament, grabbed the ceremonial staff during a session and fled with it.
The Senate’s spokesperson accused Mr Omo-Agege of leading the “armed hoodlums”, saying they had committed treason.
Mr Omo-Agege was recently suspended because of a row over comments he made during a debate on electoral reform.
The suspension was to serve as a deterrent to other senators who might wish to take the Senate to court over internal matters.