U.S. Secretary of State Hillary Clinton is urging Sudan and South Sudan to resolve bitter disputes that earlier this year pushed the countries to the brink of war.

Clinton spoke to reporters Friday during a brief visit to the southern capital, Juba, where she met with South Sudanese President Salva Kiir.

VOA correspondent Anne Look, who traveled with the secretary to Juba, says Clinton emphasized the need for the Sudans to reach an agreement on oil revenue sharing.

“She really called for some effective, useful negotiations to arrive at a deal. Because if not, the consequences, the economic consequences for both countries are very serious.”

South Sudan shut down all oil production in January because of a dispute with Sudan on fees charged to use northern pipelines. The move has deprived both countries of much-needed revenue.

The two sides clashed along their border in April, raising fears of all-out war. Speaking to reporters Friday, Clinton said both Sudans need to compromise.

Later, Clinton met with Ugandan President Yoweri Museveni in Kampala. Look says Clinton encouraged Uganda to continue leading efforts to hunt down Lord's Resistance Army fighters in central Africa and to fight Islamist militants in Somalia.

Clinton is on an 11-day tour of Africa, with scheduled stops in at least six nations. After Uganda, she is due to visit Kenya, Malawi and South Africa.

In South Africa, she is scheduled to meet with Nobel peace laureate and former president Nelson Mandela.