Nairobi county has warned owners of cows illegally roaming in the city that the animals will be impounded and auctioned.
Agriculture CEC Danvas Makori on Wednesday said the cows have become a menace causing traffic jams, invading private property and spreading diseases.
He said the cows will be impounded and driven to Dagoretti holding grounds where the same will be auctioned if the herders will not comply with stipulated laws.
Makori also said the herders will be arrested and charged in accordance with city laws.
"Many residents are upset with these cows freely roaming in the city and estates. They are invading on peoples private property and the herders have become so rowdy."
Makori said on various occasions, the herders have attacked city inspectorate officers forcing them to scamper for their lives.
"We have been forced to seek protection of Administration Police officers so that we can enforce some of the laws," he added.
"We have tried our best to ensure the herders comply but our efforts have been futile so all we have to do is impound and arrest them so that they can realise we mean business."
Makori said so far, the county has started demolition of holding bomas in Embakasi and Westlands amid efforts to see the cows out of the CBD.
The CEC also issued a stern warning to advertisement companies who cut down trees to erect billboards without permission.
He said the county is currently carrying out an audit to establish the number of billboards which have not been permitted hence not paid taxes.
Makori said they have established most of the billboards are illegally erected by City Hall cartels in a tax evasion racket.
"We are going to arrest anybody found cutting down trees for billboards and bring down those billboards."
"We're not going to permit billboards if it means a tree or even a branch has to be cut off to put up a billboard," the official said in an interview.