Supporters of opposition leader Raila Odinga, react after their political leader claimed "massive" fraud in this week's elections, in Kisumu, Kenya August 9, 2017. REUTERS/Baz Ratner

KISUMU, Kenya (Reuters) - Kenyan police fired tear-gas on Wednesday at a group of 100 chanting supporters of opposition leader Raila Odinga, shortly after their political leader claimed “massive” fraud in this week’s elections, a Reuters witness said.

The unarmed men, who had been chanting “No Raila, no peace,” scattered.