'Kenyans will not accept this!' Raila says as he condemns security operation at Matiang'i's home

Mr. Odinga, who arrived at Matiang'i's home at around 10 pm, termed the operation as "completely unacceptable", saying it was an affront to the rule of law.

"They say the more things change the more they remain the same. We are now witnessing what this country has been through before. The times of late-night arrests and detention without any charges. There is no reason why police should be coming to somebody's home at this hour of the night when people are asleep.

"If Matiang'i has committed a crime warranting his arrest that should be made public and known to him and then he can present himself for interrogation," said Odinga.

He added: "This idea of arresting senior citizens at this hour of the night is something that is completely repugnant to civilization. This is completely unacceptable."

A visibly-agitated Odinga called out the government for the incident, vowing to stand with Dr. Matiang'i and any other Kenyan who falls victim to disregard of the law.

"I have said it and I will repeat it again...We are dealing with an illegal regime. A regime that usurped power from the people of Kenya. The people of Kenya will not take this lying down... This will not be accepted. We will stand with Matiang'i and anybody else to ensure the law of this country is respected."

An unknown number of elite police officers were spotted at the home of former Interior Cabinet Secretary Dr. Fred Matiang'i at around 9pm.

The motive behind the night security operation at the former security minister's home could however not be immediately established.

The team of security officers spotted at Matiang'i's home is reported to have driven away soon after the media broke the news of the operation.