By JASON PATINKIN Associated Press

President Salva Kiir of South Sudan may sign a peace deal with rebels on Wednesday, more than a week after refusing to do so, a presidential spokesman said Tuesday.

Kiir will first express "reservations" about the agreement with rebel leader Riek Machar at a summit with regional leaders in the nation's capital, Juba, said Ateny Wek Ateny.

Kiir is unhappy about the agreement's demands that Juba be demilitarized, the rebels will appoint two state governors, and a foreigner will head a monitoring commission, he said.

Last week rebel leader Machar signed the deal, designed by the regional bloc known as IGAD and backed by the African Union, western nations and China. Kiir said he needed to consult before he could sign the agreement.

The U.S. last week circulated a draft U.N. Security Council resolution that would impose an arms embargo and targeted sanctions if South Sudan's government doesn't sign the peace deal by Sept. 1. Russia's deputy U.N. ambassador Petr Iliichev told reporters Tuesday that his country still had not received information saying who the targets of sanctions would be. Iliichev said that in Russia's view, the draft resolution was meant to pressure South Sudan's government to sign and might not be needed if it does.

Fighting continues in Unity state, where government forces launched a major offensive earlier this year. Doctors Without Borders said two of its staff members, Gawar Top Puoy and James Gatluak Gatpieny, were killed in Leer county of Unity state last week.

More than 1.6 million people have been displaced by the conflict, according to the U.N. Since December 2013 government troops have been trying to put down the rebellion.

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Associated Press writers Cara Anna at the U.N. and Rodney Muhumuza in Kampala, Uganda, contributed to this report.