Police lobbed teargas to disperse demonstrators on Thursday at Nairobi’s Uhuru Park led by activist Boniface Mwangi Reverend Timothy Njoya and musician Eric Wainaina.
The police sealed off the grounds to prevent the demonstrators from accessing the park.
The demonstrators were protesting against the high cost of living, insecurity, corruption, impunity among other issues facing the country.
The government had earlier claimed that a US donor agency plans to destabilise the government through the activists.
National Security Advisory Committee (NSAC) chairman Francis Kimemia said they have asked Foreign Affairs ministry to summon United States Agency for International Development (USAID) officials on the matter.
In a statement, Mr Kimemia said NSAC is in possession of a “credible document and information” on the agency funding of demonstrations by activists.
“The consistent plans to destabilise the current Government will not be tolerated at any costs, especially where activists are sustainably bribed to tarnish the country's and leaders' reputation regionally and internationally,” he said.
“A defrocked pastor has also been funded to pour vitriol on parliament concurrently,” he said.