Cord leader Raila Odinga has warned of "consequences" if politicians arrested over incitement remarks are not released in 24 hours.
The politicians include Machakos Senator Johnson Muthama and woman representatives Florence Mutua (Busia) and Aisha Jumwa (Kilifi).
The others are MPs Moses Kuria (Gatundu South), Ferdinand Waititu (Kabete), Kimani Ngunjiri (Bahati), Timothy Bosire (Kitutu Masaba) and Junet Mohamed (Suna East)
Raila said on Thursday that they are being held without charged and that this "basically amounts to detention without trial".
He asked the government to desist from the "authoritarianism".
