A Non-Governmental Organisation in Isiolo yesterday threatened to sue the government for failing to protect wildlife.

Centre for Community Change coordinator Joseph Kalapata said they will compile cases of elephant and Rhino killings in the area to challenge the government in court.

He accused the Kenya Wildlife Service for taking a partisan role instead of adequately addressing the plight of the animals.

"We cannot sit back and watch our wildlife ruined. We will mobilise resources to ensure that those entrusted with the work are held responsible for the killings," said Kalapata.

The number of elephants has gone down from 7,415 in 2008 to 6,361 in 2012 while that of Grevy Zebras has decreased from 2,400 to 1,870 in the same period.

KWS director William Kiprono who announced the results at Sarova Shaba Lodge two months ago attributed the fall to increased poaching due to high market demand for ivory, drought, climate change and lack of bumps and signs on the Isiolo-Moyale highway where several zebras have been knocked down.