Suna East MP Junet Mohamed has been arrested.
Police seized the outspoken ODM lawmaker on Friday, accusing him of hate speech and incitement to violence.
He was taken to Homa Bay Police Station, where he is recording a statement.
Police sources told the Nation that the MP would be taken to court today to answer to the charges.
Police are yet to reveal the specifics of what Mr Mohamed uttered.
Focus on five judges in ballot papers case
But Homa Bay Criminal Investigations chief
Joseph Tuksho said the MP would be released after investigation
The arrest comes days after President Uhuru Kenyatta vowed stern action against politicians inciting Kenyans to violence.

The National Cohesion and Integration Commission (NCIC) has also put on notice leaders fanning disharmony in the country.
Source the daily nation
Police seized the outspoken ODM lawmaker on Friday, accusing him of hate speech and incitement to violence.
He was taken to Homa Bay Police Station, where he is recording a statement.
Police sources told the Nation that the MP would be taken to court today to answer to the charges.
Police are yet to reveal the specifics of what Mr Mohamed uttered.
Focus on five judges in ballot papers case
But Homa Bay Criminal Investigations chief
Joseph Tuksho said the MP would be released after investigation
The arrest comes days after President Uhuru Kenyatta vowed stern action against politicians inciting Kenyans to violence.
The National Cohesion and Integration Commission (NCIC) has also put on notice leaders fanning disharmony in the country.
Source the daily nation