In the photos that have been shared widely on social media, the officers are seen mercilessly clobbering Daily Nation Photographer Laban Walloga during anti-SGR demonstrations in Mombasa.
The security officers also arrested several demonstrators who were protesting against a government directive that all cargo from the port of Mombasa be transported through the SGR.
They were forced to lob teargas canisters to disperse the protesters under the First Action Movement group who had converged at Uhuru Gardens moving towards the Mombasa port.
Civil society groups led by HAKI Africa and business operators including cargo handlers have been staging demos since the introduction of the directive in August last year.
“HAKI Africa today condemns police officers throwing teargas to dispatch the hundreds of crowds that were protesting against the unlawful SGR monopolisation and economic oppression,” tweeted HAKI Africa.