Odinga said Kenya will do whatever it takes to ensure the issues between the two countries are resolved without resorting to war again.
The PM said Kenya is concerned that another full scale war between Juba and Khartoum would pose immense security and humanitarian challenges to the region which is struggling to contain insurgents from Somalia and is yet to overcome the drought and refugee problems in the Horn of Africa.
He was speaking when he received a delegation of South Sudan officials who briefed him on developments between the two countries.
The PM expressed worries that positions appeared to be hardening between the two countries.
He said refugees who had returned to Sudan may begin stream back to Kenya following growing tension, a development he feared would trigger fresh humanitarian crisis in the Horn of Africa.
The South Sudan delegation, led by Office of the President Minister Emmanuel LoWilla and Information Minister Barnaba Marial Benjamin, asked Kenya to resume an active role in searching for peace between Juba and Khartoum.
The ministers said Kenya best understood the issues between the two Sudans, having led the peace process.
They reiterated South Sudan’s commitment to a peaceful resolution, saying President Salva Kiir has repeatedly committed that he will never take his country to war again.