Kenya and Djibouti are sent for repeat election after they failed to garner more than 128 votes of all the 193 member states to capture the seat in the first round election which was conducted last night.
Kenya, the African Union endorsed candidate, polled 113 votes against Djibouti's 78 votes, falling short of the threshold by 15 votes.
The other two seats will be filled by Tunisia and Niger. If Kenya wins in Thursday evening's vote it will be the third time the country will be serving on the Council.
The Security Council has 10 non-permanent members in addition to the veto-wielding Big Five - Britain, China, France, Russia and the United States