Police arrested about 120 opposition supporters last week during clashes between protesters and security forces, according to Togolese human rights groups.
Government officials said all but eight had been released, and those still detained were in possession of knives.
“You don’t go demonstrate with these,” security minister Damehane Yark said of the weapons.
Demonstrators have taken to the streets in the capital of Lome for weeks to protest new electoral reforms they say favor the ruling party ahead of October’s parliamentary elections. They are seeking a repeal of changes to the electoral laws.